Originally Posted by CZ_Kid
I read through most of the pages and I don't believe I saw this mentioned anywhere? I have the "wondering steering" issue. When driving I can pretty much keep a straight line but after taking a turn the wheels don't really center themselves. I have an 86 CJ7 with a 4'' lift with and 33.5 BF Goodrich all-terrain tires. It also has factory power steering that I installed (used) since my jeep originally came without power steering. Everything appears in order with steering components. Nothing broken or loose. There is a little play in factory steering shaft at the upper joint but this is expected after 25+ years and will be corrected with new steering shaft. My questions is should I consider shimming an already offset front leaf? I called lift kit manufacture (Tuff Country EZ-Ride 4") about possible caster angle issues and I was told that the front end leafs were manufactured "offset" for proper caster angle. Do these offset leafs not always correct caster angle 100% and still require a 2 degree shim at least? Thanks guys. BTW, I live in Puerto Rico where getting a proper diagnostic is sometimes difficult and is why I have not gone to a tire shop for caster angle information. I'm pretty handy with tools but not 100% comfortable with this angle tool as I've seen it used several different ways in this thread and don't want to get a bad reading. Thanks again.
Update: I put an angle meter on the top bolt of the upper ball joint and got a reading of 5 degrees of positive caster. From what I've read, it should be about 4 degrees with a 4" lift? So I'm good?
From l what I have followed and read, you should take 2 readings. One at the bottom on the spring and then at the top of the ball joint.
then compare the 2 and see if there is 4 degree difference.
As stated somewhere in the post you must be on level ground. If you not then the 1 reading from the top may not be true.
reading a bottom of spring -1
reading at top of ball joint +4
true caster is +3