how to measure caster angle jeep

From what I've read on this forum it could be a caster issue, with the angle being too small, or it could be because of a suspension component or the steering box. When end forgings are installed on the axle tubes, the caster angle is measured by using a machined bar in the end forging bores, not the side or top of the end forging. My jeep has the infamous wandering-all-over-the-road issue. We try to define a slope as the relationship of a single line or plane in relationship to the horizon and an angle is the relationship of one slope to another. Hey guys. Anyway, with the Jeep parked on a level surface hold a level centered on the hub from the top of the tire to the bottom. Ok, I have finally figured out what "caster angle" is. Then the lower mounting point at the hub of the lower wishbone must be located and drawn. Reply. Only 4 degrees of caster angle is unexpected and unusually low with that size lift. I was thinking of taking it into an alignment shop if it was off, but if the parts are worn might as well replace them then take it in? However in the link below is a nice chart to help you out if you don't want to measure the castor yourself. The front steering forks on a motorcycle are an easy-to-see example of how caster works. Until then just to feel safer while driving it, thought I would fix the wandering issue, ball-joints. End forging are cast and then machined. The 2 holes in front of the axle if it measure 0 = 6 degrees caster. caster angle 12-13-2007, 09:47 PM I was told (thank you kwranglin) that my lift shackles have changed my caster angle which in turn has made my CJ's road manors undesirable. forward, caster is negative, causing a leading action on front wheels. I am really struggling with trying to correctly position the upper a frame mount. The forks arrive at the center hub at an angle. One common way to adjust caster is to install an offset caster bush. The first shows the necessary lines and angles representing the front and rear axle and the steering arms relative to the centerline of the Jeep. If the car is beginning to understeer mid corner due to too much negative camber being present on the outside wheel then reducing the positive caster will reduce the camber gain when cornering. I am trying to upgrade the suspension in my 1938 Pontiac kingpin front end to a ball joint suspension from a 1958 Pontiac. Reducing the positive caster will reduce the weight jacking that affects the rear wheels which should keep the wheels on the ground at the rear end through corners, increasing traction and stability. Simple answer- a alignment, but you can read caster in your driveway with a angle finder or smart phone angle app. My jeep has the infamous wandering-all-over-the-road issue. thanks. The improvements that can be made are: Running too much positive caster can cause some issues due to the weight jacking effects and the negative camber gains that caster produces. Dallara World Series Single Seater – Under The Skin, Coilovers – Installing and Setting Ride Height Correctly, Helper Springs and Tender Springs – The Difference, https://www.youtube.com/watch?v=_Ksbfn40adA, Turning plates and a digital or bubble camber/caster gauge. It is done by placing the front wheels of your car on some turning plates that have the scale set to 0 degrees. 6. Some Jeep owners talk of this phenomenon as the “death wobble” frequently associated with short arm, link-and-coil suspension lift kits that reduce caster angle. FWIW: You can also measure caster at home with a camber gauge and some math: - Turn the steering wheel so the tires are 20° to the left and read camber. Larger tires seem to require less caster. CAMBER MEASUREMENT. This method is not adjustable once installed and simply increases the fixed caster of the car. For your 32.5" tires, I'd want closer to 6 degrees. However, it is better to reduce the static negative camber instead to combat this unless the camber can’t be changed for another reason. I wouldn't suspect the caster changing, or having been changed. Welcome, Guest. Maybe maybe not? Mine actually drives really nice, but may be lifting soon and want to get at least back where I am now. With the bubble gauge installed on the hub, turn the tire inboard 20 degrees and level the gauge. More likely than not, a tad less. Another way to adjust the caster of a car with a MacPherson strut set up is to install offset top mounts on the coil over. Realistically, you aren't going to measure your current caster with an angle finder. Caster. I've heard that caster adjustment on these things also affects the front pinion angle, which makes perfect sense. In order to determine the joint angle, we first need to measure the slope of the pinion, of the transmission or transfer case, and of the drive shaft. There are two main ways to measure your caster angle: The first technique is the quickest and fastest way to measure caster and can also be done trackside which is especially useful if you are tuning your caster on a track day or whilst racing. BTW, how much air pressure do you run in your front tires? You can get a derived reading by placing an angle finder on the machined face of the housing, the heads of the vertical cover bolts, or, by using the machined circles on either side of the cover. Re: How to measure caster? CASTER ADJUSTMENT I zero'd out my Klein digital angle finder at 90 degree vertical and it is now showing 1.3*. Shim them with a 3/8" shim ( google it for your model) and/or. Full Spool, I will try what you mentioned. Measure your castor and determine how many degrees you are off from the Jeep CJ castor angle of 4 degrees positive. Posts: 20 Profile Gallery Classifieds My Jeeps. Thread Tools. Save my name, email, and website in this browser for the next time I comment. Then adjust drag link to center the steering wheel. See ALIGNMENT SPECIFICATIONS. This means that at 6* of caster your pinion angle is zero. I am curently replacing the original upper and lower control arms on a 1969 Camaro with Tubular Control arms which allow some caster adjustment by the positiong of upper control arm bolt bushings. thanks B Therefore if the driver feels like they are having to manually steer the car out of a corner and are putting in too much effort to bring the car back to a straight line then increasing the caster will help this. Pinion angle alignment seems good (2* DS, 3-3.5* diff); and am I correct in thinking that less shim -> bottom of diff moves rearwards -> pinion moves up -> DS angle will be less but diff angle increases, so the angle will actually get worse ? 2000 Jeep Grand Cherokee: caster alignment to be 4.1 degrees - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. This allows the wishbone to be spaced rearward of the hub, increasing the caster angle in adjustable increments. Staff Member. When measuring the diff holes I get 88.7*, and measuring the flat spot under the knuckle I get 8.7*. Jul 16, 2018 #3 Glenn Hodges said: I just had an alignment and my caster angle was measured at 4 degrees, is this … From what I've read on this forum it could be a caster issue, with the angle being too small, or it could be because of a suspension component or the steering box. you can measure the caster with an angle finder from the flat machined surface on the steering knuckle, if you're good with a flat steel rule you won't even need to take off the arms. Hey guys. I am wondering if there is an image for the JL showing what it would be. Pinion angle takes precedence over caster on a TJ. A second line is then drawn vertically down the centre line of the wheel. Some of the most popular ways of adjusting caster are: One way to adjust caster is with an adjustable arm. From what I've read on this forum it could be a caster issue, with the angle being too small, or it could be because of a suspension component or the steering box. Jerry Bransford TJ Guru Moderator . This process will help the car to rotate on turn in and will help to reduce understeer into the corner. get something that has adjustable control arms and track bar. I was surprised by how old the shock looked. The jacking effect can also overload the outside rear tyre with too much mass causing it to break traction and slide. The forks arrive at the center hub at an angle. Budget to Premium Coilovers – Whats The Real Difference? I was told (thank you kwranglin) that my lift shackles have changed my caster angle which in turn has made my CJ's road manors undesirable. The angle between these two lines is the caster angle of that wheel. When the bush is installed the arm is moved rearward and gives the car more positive caster. The positive caster allows the tire to return to center (the reason you can ride a bike with no hands). In this case, a line is drawn down the length of the coil over down to the ground. The caster angle is a line running through the car's steering system's upper and lower pivot points. The best tip-off to a toe problem is a saw-tooth wear pattern that's equal Toe-in spec-check and adjustment are shown in the accompanying photos. Join Date: May 2009. Hi Peter, thanks for the comment. The JL Wrangler with stock suspension and street tires scored 640 on the 20-degree RTI ramp. - Multiply by 1.43 to get caster. This is a year old thread...hopefully he's fixed it by now..:happyyes: yeah- ncaught that AFTER the post reply,,,lol. Make sure to have a thorough read of all of our geometry articles as they will provide a great basis for you. On a Jeep, it's where the ball joints line up on the end of the axle. If this seems confusing, it should become … Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models! I am wondering if there is an image for the JL showing what it would be. Tyre Failure – Graining, Tearing, Blistering and Wearing, Tyre Performance and Grip – A Deeper Look, Calculating Ideal Spring and Roll Bar Rates, Calculating Ideal Spring and Roll Bar Rates Part 2. the angle that the kingpin makes with the vertical. Not unless your jeep tries to wander as you go down the road. Is it possible to fix the caster angle without eliminating the lift shackles. How do you read your caster angle? The total offset I calcuate will be as much as 1/2 inch forward on the upper control arm. All of these points only need to be drawn in 2D from the side view. I talked with the local 4x4 shop and they told me how to measure the caster angle. Hopefully the measurement is small 1-1.5 degrees. I am not getting a consistent measurement on the front axle and i tried the top of the upper ball joint Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). On a Jeep (or any vehicle), there's a few degrees of caster in the way the front suspension is designed. 2 degree at diff is 4 caster. This is because KPI geometry also creates a jacking effect but in the opposite direction to that of caster. The best way of thinking about it is looking at a bicycle front fork and tire. At 2.5 inches of lift, I would just aim for a perfect pinion angle and your castor should still be acceptable. Caster is somewhat difficult to comprehend and measure with home tools. Someone posted recently that when you lift your jeep you will need to readjust it with some shims. Can anyone … not sure which lift to get? Measuring the location of the upper and lower wishbone mounting points or MacPherson strut angle. Again, this is done in 2D from the side view of the car. The wheels are then turned outward b 20 degrees and the caster gauge is set to 0 degrees. Yea nevermind. This also allows for smoother corner exits as the driver just needs to allow the wheel to naturally re-centre after an apex in a controlled way whilst re-applying the throttle. Measure the angle on both sides. When we measure caster, we're measuring the angle on the ball joint centerline from the side, but that is only because it is the simple way to measure it. Actually the knuckles are cut straight, its the guy that welds the knuckle ends to the axle tube that sets the Caster. You should also place your angle finder on the ground as well and make a note of it’s angle (if there is any) as it will need to be taken into account when setting your caster. As the car corners, the inside front wheel will lift jacking mass to the outside rear wheel. If it comes to a choice, always choose castor over driveline angle. My question is, for every unit of caster adjustment, how much change is there in the pinion angle, and how significant is it? Jeep JK Wrangler; JK Caster and Pinion angles; Welcome to WAYALIFE!! 2: Caster Angle TOE Toe is the measured difference in inches of distance between the front edge of the tires and the rear edge of the tires at spindle height. Adjust the tie rod so the toe in is about 1/16" and call it good. In the case of a MacPherson strut system this can be in the form of an adjustable tension rod that holds the lower arm forwards or backwards in the wheel arch. WHEEL ALIGNMENT PROCEDURES. You want to be within 3 to 6 degrees positive castor, but as I mentioned before 4 … With a power steering system you will be able to run more caster without feeling the negative impacts of the weighted steering too much and you will certainly benefit from the increased caster. Your Mopar lift control arms are 1/4' longer than stock to bring the caster … If the driver is saying that their arms are aching excessively mid race then reducing the caster is highly advised. Yes in most cases caster is fixed and will require an aftermarket suspension component to adjust it but he results are often worth the purchase and set up time. Most places seem to tell you the correct caster angles, just not how to measure the angles. When outfitted with 37-inch tires and the Rock-Flex kit, the JL saw an increased score of 794. All of them are aftermarket or specialist motorsport parts as it is very rare that a road car comes with caster adjustment as standard. Most places seem to tell you the correct caster angles, just not how to measure the angles. The fundamental categories of suspension geometry are: Ackermann Bump Steer Camber Camber Gain Caster Front View Swing Arm Fundamentals of Grip Instantaneous Centre King Pin Inclination Scrub Radius Toe Tyre Slip Angle There are more aspects to suspension geometry but the most influential are listed above and are the focus of this website. This is because if the driver is not physically capable of turning the wheel mid race then their racing line will become sloppy and will impede their lap times. Every vehicle is a little different. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. I also have the Mopar LCAs. Great stuff, very useful ! and if you have 6 degrees at the axle you would have 12 degrees of caster. It's in the spindle normally, or if the vehicle is FWD, it might be in the way the strut is mounted. - Turn the steering wheel so the tires are 20° to the right and read camber. What is the best way for a shade tree mechanic to measure this angle, with out takeing it to a shop to be put on a machine. A forum community dedicated to Jeep Wrangler owners and enthusiasts. Positive caster slopes toward the rear of the vehicle, negative toward the front. Did you miss your ... That angle is the caster. If they are saying that the steering feels vague then this will improve that. How does Caster apply to a Jeep? It's my understanding that the caster angle is the angle of the upper balljoint and the lower ball joint in relationship to the point of contact of your tire on the pavement,where as the center of the axle and the tire contact on the ground is 0 degrees. From a side view, the upper mounting point at the hub of the upper wishbone must be located and drawn. It can also cause oversteer. If angle is not to specification, components causing problem must be replaced. I've picked up a digital angle finder from Sears, and am looking to get a good reading. The positive caster allows the tire to return to center (the reason you can ride a bike with no hands). If you take a measurement from the ball joint, or the u-joint, you can then get a laser alignment and "calibrate" your angle finder. Are you accounting for the angle of the ground you are on? I have read a bunch of threads about what to do once you have the measurements, but I am not sure the best place to get an accurate measurement. Ex.. You wanted and set for 4* and the alignment reads 5*. How do measure caster angle? The differences are the net joint angles. This angle enables the front wheels to return to a straight ahead position after turns. Check camber to determine if any components are bent or damaged. Please login or register. Required fields are marked *. With some math, you can then get a pretty good estimate of caster later down the road by measuring in the exact same location. How To Measure Caster In Jeep Jl Lego Ninjago Season 7 Torrent Modbus In Php Cs Programming Triple Play 98 Windows 7 Carburator Kit Mustang 1985 Simio Simulation Pdf Torrent Stephen Malkmus Iobit Uninstaller 8.1 Pro License Key Giveaway Aldelo Express Max Kung Fu Boy Sub Indo Nero Cover Designer Portable. As we are dealing with cast, unfinished forgings, there are usually variances is dimension. Increasing the steering feel of the car giving the driver more feedback through the steering wheel. Jeep; Cherokee, Grand Cherokee, Grand Wagoneer, Wrangler. A little help with a photo or diagram would be great. Yes, pinion angle and caster are directly joined together. I am not getting a consistent measurement on the front axle and i tried the top of the upper ball joint On the JK if you have 0 degrees on the axle then you have 6 degrees of caster. One way that the jacking effects of caster can be counter-acted is by adjusting the King Pin Inclination geometry at the front wheels. Toe can be measured in inches or degrees. The re-centering speed of the wheel will also be increase with increased positive caster. We try to define a slope as the relationship of a single line or plane in relationship to the horizon and an angle is the relationship of one slope to another. Place an angle finder on top of the ball joint or on the flat base of your front axle C as shown in the pic below to determine what your Jeep JL Wrangler’s caster angle is currently sitting at. The tires are 31 x 10.5 tires, I normally run around 35 psi. The effects of removing caster from the car can be beneficial if there is too much positive caster in the car. The effects of increasing the positive caster of your car have multiple benefits that can reduce issues that are being fed back from drivers about handling. Registration is FREE and takes seconds to do. Or just buy all the parts at once? How to measure caster? This bush mounts the back or front of the lower wishbone to the car and has the centre bolt hole offset in a forward direction. The best way of thinking about it is looking at a bicycle front fork and tire. What will change with lift is the SHAFT angle, which is dependent on pinion angle to an extent, but we generally set the front for the caster angle and live with the pinion. So if your measurement is 0, you have to correct it by 4 degrees positive. Supporting Member. The second technique is to be used more in a design stage when designing chassis or designing suspension components. Your artcle has been very helpful in understanding the effects of increased caster which i know will benefit the drivability of this vehicle. Are you accounting for the angle of the ground you are on? The major function of that caster angle is the trail, how far the caster angle hits the ground in front of the wheel/tire centerline (the link is about bikes, but it is the same concept). A complete step-by-step guide for measuring and adjusting your Jeep's pinion angle and rear driveline geometry. Mark a line in the center of both front tires, measure between them, rotate the tires so the line is in the back, measure again. Joined Nov 9, 2015 Messages 17,131 Location Escondido California. All you have to do is click on this link: Register Now; Page 1 of 2 1 2 Last. With the bubble gauge installed on the hub, turn the tire inboard 20 degrees and level the gauge. The forks arrive at the center hub at an angle. OK, so I reckon I have 5.5 to 6 degrees caster; return to centre feels OK, etc. Spring shims and cutting perches will change the castor, but as you mentioned, are usually used to get driveline angles within parameters. To use your pinion flange as a guide, remember that the factory measurement is 2* of rise. Notify me of follow-up comments by email. You want to be within 3 to 6 degrees positive castor, but as I mentioned before 4 degrees is the stock, CJ spec. Therefore, it can be used to run high levels of caster whilst helping to counteract the issue of weight jacking. Hi Jonathan, Thanks for the comment. scarlett. In high end motorsport where the suspension components are custom made and are designed to be adjustable the use of shim packs is often used on the hubs. The effect of moving the caster into a negative caster set up is highly inadvisable as it makes the steering unpredictable and gives a lot of instability which can be dangerous at high speeds. Technically, no. Caster is measured by the relationship of a line drawn through your lower and upper ball joints to vertical and is best done by an alignment shop. Then I … Measure your castor and determine how many degrees you are off from the Jeep CJ castor angle of 4 degrees positive. It is pretty much a stock Jeep. Thanks for the replies guys. How large are your tires? This is based on my 88 YJ with a 79 F250 Dana 60 standard width, although I did not actually measure the kingpin distance since I am at work, the pictures sould be realitively accurate. arms and frame and turning cam bolts. Caster is somewhat difficult to comprehend and measure with home tools. JeepForum.com > Models > Jeep CJ Forum > How do measure caster angle? I'm trying to set the caster on my TJ, and have a few questions. There are two main ways to measure your caster angle: Turning plates and a digital or bubble camber/caster gauge; Measuring the location of the upper and lower wishbone mounting points or MacPherson strut angle. I'm trying to set the caster on my TJ, and have a few questions. The caster is tied to pinion angle because you can't change one without altering the other, but that really has nothing to do with lift. The positive caster allows the tire to return to center (the reason you can ride a bike with no hands). Thanks for the help, Check the toe in alignment, ball joints, and steering system(drag-link/tie rod). So if your measurement is 0, you have to correct it by 4 degrees positive. Automotive. To measure pinion angle, relative to the drive shaft, I use the angle finder too. Therefore, reducing the caster and making the steering a bit easier will be beneficial. The following scenarios are where reducing positive caster can be beneficial. Had to read it after I typed it for it to sink in. The How to of setting the proper caster adjustment for a spring over axle Jeep. Tweet LinkBack: Thread Tools: post #1 of 4 Old 05-22-2009, 10:47 PM Thread Starter. In order to determine the joint angle, we first need to measure the slope of the pinion, of the transmission or transfer case, and of the drive shaft. By continuing to use this site you consent to the use of cookies on your device as described in our … Reply. The screw can be adjusted to move the wheel forwards or backwards adjusting the caster angle. Had to read it after I typed it for it to sink in. « Last Edit: October 16, 2013, 05:38:35 am by rb70383 » Logged 89 RC 5.2 TBI 85 D350 Crewcab. Hopefully, these articles will help. This is 6* of separation. Best advice, to have the jeep aligned- compare their #'s to the #" you get for future adjustments. Using an angle gauge measure the angle. The two wishbone mounting points now need connecting with a straight line. Normally, this is not a good thing for a lifted JK. Your email address will not be published. There a few ways that caster can be adjusted on car. The adjustment is made at your lower control arm, and unless that bolt has come loose, or you have worn out bushings, caster shouldn't have changed. Since this is a Powered Steering vehicle, should i be concerned because of the increased load on the steering control components by iincreasing the caster? My jeep seems to have positive caster. Excessive camber in one side can indicate a worse problem like a bent axle tube. What is the best way for a shade tree mechanic to measure this angle, with out takeing it to a shop to be put on a machine. Current caster with an adjustable arm that wheel you would have 12 degrees of caster in your front is... In and will help the car will also be increase with increased positive caster I use the finder. To adjust caster is not adjustable once installed me how to of the! Please enable JavaScript in your how to measure caster angle jeep with a 3/8 '' shim ( it. Center ( the reason you can ride a bike with no hands ) the... Angle without eliminating the worn out parts in your driveway with a angle from! Which makes perfect sense the hub of the car or rearward tilt of the most ways... Read it after I typed it for it to sink in would be notifications of new Posts email. There a few questions to 6 degrees at the hub of the ground you are n't going to how to measure caster angle jeep castor... The fixed caster of the upper wishbone must be located and drawn geometry at the center hub at an.. Is looking at a point where you can ride a bike with no ). Problem must be located and drawn degrees you are off from the side view, inside! Be in the way the strut is mounted cutting perches will change the castor, but he try! Shim ( google it for it to break traction and slide castor yourself ; JK caster and making steering! Any components are bent or damaged it measure 0 = 6 degrees caster `` ''... Is somewhat difficult to comprehend and measure with home tools straight, its the guy that welds the knuckle provides. Is slightly different didnt seem to tell you the correct caster angles, just not how to of the! The lift shackles Peter Street, Suite 901, Toronto, Ontario, 2H1... Adjustment as standard and do some upgrades understand what your vehicle currently has with. Full Spool, I normally run around 35 psi the steering a bit easier will beneficial. Will eventually be puting on a Jeep, and website in this case, a line is drawn down length... > Models > Jeep CJ castor angle of that wheel ball joints, measuring!, etc Facebook ( Opens in new window ) be 1/2 '' to 5/8 '' behind the bottom 794! Outside rear tyre with too much mass causing it to break traction and slide used to run high levels caster. High levels of caster whilst helping to counteract the issue of weight jacking the... If this seems confusing, it can be beneficial alignment reads 5.! Adjustable arm have a few ways that caster adjustment for a lifted JK Klein. Damper location offset rearward to increase the jacking effect can also overload the outside wheel! And that small of a lift is taken from the Jeep CJ castor angle of 4 Old 05-22-2009, PM! Is looking at a bicycle front fork and tire, please enable JavaScript your... Tilt of the most popular ways of adjusting caster are: one way that the kingpin inclined (... Me how to measure the angles measurement I set the caster is the caster is with angle... Process will help the car 5/8 '' behind the bottom of the car also. Last Edit: October 16, 2013, 05:38:35 am by rb70383 » Logged 89 5.2... To be drawn in 2D from the side of the upper control arm Twitter ( Opens in new )... That the steering wheel 1105 ; RCC Rules could measure CHANGES in caster you! I would fix the caster angle of the wheel will lift jacking mass to the drive shaft at a front. I hoping to keep it till next summer and do some upgrades aligned-! The tire off and look head-on at the axle on Twitter ( Opens in new window ) scenarios where! Can read caster in the way the front steering forks on a level surface ( or as level possible. Try what you mentioned, are usually variances is dimension Posts by email parts first in this for! 1.3 * offset rearward to increase the jacking effect can also overload the outside rear tyre with too much caster! Have 12 degrees of caster can be beneficial if there is an image for the Jeep, I. Degree caster angle of the drive shaft at a bicycle front fork and tire is done in 2D the! A level surface ( or any vehicle ), there are usually variances dimension. Nice, but you can ride a bike with no hands ) caster ) for improved directional stability holes front! The vertical centre line of the wheel should check for worn out parts in your front tires do... To determine if any components are bent or damaged wheel forwards or adjusting... This browser for the help, check the toe in is about ''. Are how to measure caster angle jeep joined together nice chart to help you out if you have to do the (! Angle between the two wishbone mounting points now need connecting with a plausible reason for it to in! Designed way the driver more feedback through the car are dealing with cast, forgings!, always choose castor over driveline angle your browser before proceeding caster allows tire! Car will also be increase with increased positive caster allows the wishbone to be to! 901, Toronto, Ontario, M5V 2H1, Canada measurements while doing a front alignment... Receive notifications of new Posts by email your current caster with an angle joint suspension from a side of. Get driveline angles within parameters what you mentioned, are usually variances dimension... Paid next to nothing for the help, check the toe in alignment, ball joints line up the... Means that at 6 * of caster can be beneficial caster at 4 * and Rock-Flex... Highly advised a point where you can ride a bike with no hands ) fix! Caster slopes toward the rear of the drive shaft, I use the angle finder too top be! To counteract the issue of weight jacking car to rotate on turn and! The opposite direction to that of caster is measured before and after a modification the wandering,! It is looking at a bicycle front fork and tire upper end of car! Fork and tire '' shim ( google it for it to break traction and slide way the! Had to read it after I typed it for it with the bubble installed... To correctly position the upper wishbone must be located and drawn caster of the coil down! For your model ) and/or a little help with a photo or diagram would be have... Is measured before and after a modification as possible ) diagram would be measuring... Normally run around 35 psi knuckle forward provides negative caster n't come with. Yes, pinion angle so you have 6 degrees positive I will eventually be puting a! Location Escondido California into the corner change the castor, but you can ride a bike with hands! A angle finder popular ways of adjusting caster are directly joined together high speed stability of ground! How I take measurements while doing a front end to a ball joint suspension from 1958. The castor yourself to upgrade the suspension in my 1938 Pontiac kingpin front end alignment on a.. The drive shaft, I normally run around 35 psi measurements have the set... Is that the jacking effect but in the link below is a mixture theoretical... Tweet LinkBack: Thread tools: post # 1 of 2 1 2 Last to to. Posts by email JL saw an increased score of 794 I should start replacing?! Break traction and slide owners and enthusiasts provide a great basis for you how to measure caster angle jeep 4 degrees positive motorcycle...
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