Join Date: Jan 2001
Location: GA, USA
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CJ - Axle swapping, shim and perch ?s
I don't recall this being covered, so here goes.
I will be putting a HD20 into the CJ in a SUA setup with 4" lift springs.
Should I leave the shims that came on the springs on them and adjust the pinion angle when putting on new spring perches.
Should I just remove them and adjust the pinion angle when I put on the new spring perches.
The only reason I could think of to leave the shims in is if for some reason I need to adjust the pinion angle in the future, it would be easier to change a shim than to remove and reweld the perches.