Rear Control Arms and Bushings
With an expected 2" or less of lift, this LJ should not need adjustable control arms, driveline angles should be okay. I removed a lower control arm and checked the bushings. They look very weathered.
But how do they feel? I grabbed a stout rod and stuck it through the bushings and flexed them a little. Not terrible, but a bit mushy.
I bought a new set of Moog rear control arms from Amazon, two RK640734 (lower) and two RK620246 (upper):
I did the same flex test as above on the new control arms. Much firmer. Yes, this upgrade was needed.
Installation was surprisingly easy. Remove the bolts, and they drop right out.
And I added sway bar bushings, Moog K3160 (probably didn't need new ones, but I only want to do all of this once):
With an expected 2" or less of lift, this LJ should not need adjustable control arms, driveline angles should be okay. I removed a lower control arm and checked the bushings. They look very weathered.
But how do they feel? I grabbed a stout rod and stuck it through the bushings and flexed them a little. Not terrible, but a bit mushy.
I bought a new set of Moog rear control arms from Amazon, two RK640734 (lower) and two RK620246 (upper):
I did the same flex test as above on the new control arms. Much firmer. Yes, this upgrade was needed.
Installation was surprisingly easy. Remove the bolts, and they drop right out.
And I added sway bar bushings, Moog K3160 (probably didn't need new ones, but I only want to do all of this once):