The two rear mounts that hold the rigid IFS axle to the frame have holes that are quite a bit bigger than the bolts. Is that to allow room to shift the angle of the axle to align the u-joints properly? Ever since I switched out my front end diff and bolted things back in, I have had a much harsher vibration with the front shaft turning than before.


1989 reg cab pickup, 22re, 31s, 4.56s, rear ARB, rear OME springs, RS9000s, otherwise stock.