how much can i shim Lca's

[muddytires]

i have a 3'' skyjacker kit on my 89xj. It came with 16" non adjustable lower control arms. I want to add 1 3/4'' coil spacers giving it around 5" lift. Question is how much can i shim the rear Lca bracket to get the right caster? i read somewhere the lca needs to be 16 5/8'' at 5'' lift. Can this be done or is there a limit on how much you can shim it?

[Ivan]

The shims come in two sizes.... Part number for the 4mm shim is 52003976, and 52000234 for the .95mm one.

You can stack as many that will fit. I don't recall how much "play" you have to move the CA forward, but it seems to be at least 1/2" worth of room. Recommended range is 5 to 7 degrees. The less the better, so as not to create driveshaft/vibe problems up front, yet enough to get your caster where you need it. It really varies a little bit from XJ to XJ....