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post #1 of 9 Old 03-12-2010, 07:18 PM Thread Starter
78orangejeeper
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Caster

Does anyone have a picture of the axle with the correct caster angle with or without wedges? I am having a hard time visulizing this? I am having some of the same wandering issues while driving. The PO put a new steering box before I purchased. since, I have replaced the steering shaft which was completely worn out. It has a 2 1/2 in suspension lift so I think it may be a caster alignment issue. Thanks for the help.

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post #2 of 9 Old 03-12-2010, 07:19 PM
alex211
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Are the shackle stock length or longer? The only real way to measure caster is with an angle finder on the knuckles.

95 xj bone stock for now
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post #3 of 9 Old 03-12-2010, 07:31 PM Thread Starter
78orangejeeper
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Stock shackles
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post #4 of 9 Old 03-12-2010, 07:42 PM
LT1CJ7
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Quote:
Originally Posted by alex211 View Post
The only real way to measure caster is with an angle finder on the knuckles.
Well, The ONLY REAL way to get a correct caster measurment is an alignment.
An angle finder will get you in the ballpark, If done correctly.
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post #5 of 9 Old 03-15-2010, 09:32 AM
CSP
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Even if you had a picture it's not like the difference will be visible.
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post #6 of 9 Old 03-15-2010, 11:09 AM
Skotter
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Do a search for "castor" and there's a comprehensive write up on it (might even be sticky, not sure). I'd stay away from shims. Generally, they're either going to negatively affect your castor or your pinion angle. Might help one, but it's going to hurt the other.
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post #7 of 9 Old 03-15-2010, 11:35 AM
80cj
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Quote:
Originally Posted by Skotter View Post
Do a search for "castor" and there's a comprehensive write up on it (might even be sticky, not sure). I'd stay away from shims. Generally, they're either going to negatively affect your castor or your pinion angle. Might help one, but it's going to hurt the other.
That's true especially when you consider that stock caster agnle from the factory is 3 degress +1 (4 degrees?). Mine was only 2 degrees and I added in 4 degree steel shims for a total of 6 degrees positive. Drives and handles excellently. As you say, the compromise is in the front U joint angle but I normally run with my hubs free anyway and seldom exceed 20 MPH in 4WD. I run a 2" lift with my skid plate lowered 5/8" to correct rear U joint angles. I've noticed that with this setup, there is a barely noticeable angle at the front pinion U joint. If I really wanted to run with my front hubs locked on the highway, a CV joint could be used at the transfer case front output assuming that there is enough room at the skid plate to accomodate the bulk of the CV .
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post #8 of 9 Old 03-29-2010, 10:11 PM
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Quote:
Originally Posted by Skotter View Post
Do a search for "castor" and there's a comprehensive write up on it (might even be sticky, not sure). I'd stay away from shims. Generally, they're either going to negatively affect your castor or your pinion angle. Might help one, but it's going to hurt the other.
Do a search for "caster" and you'll have even better results.


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post #9 of 9 Old 03-30-2010, 09:00 AM
Skotter
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Thanks PP, it's all in the little details, like proper spelling.
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