One of the things that has never quite settled well with me regarding the WJ Jeep is the rear-end shimmy from side to side. And as with anything that wears, as time has gone on so has the Jeep suspension.
I have changed every suspension part on the WJ within the last 3-years and it restored some of the original ride qualities. I have replaced each of the control arms with stronger aftermarket units that have more substantial bushings in them. Of course this will reduce some of the suspension articulation in off-road situations.
One of the many items I also replaced was the upper rear A-arm and ball-joint. Well, after just three short years the bushings in the rear A-arm are shot! The shimmy has returned in it's annoying fashion and I could not take it anymore.
So, I sprung for an aftermarket unit from Rusty's Off Road. Of course there are Pros & Cons, I am sure. But after having installed the unit the rear ride is more solid than ever before. The suspension now has so little deflection that I can actually see deflection in the sidewall of the 20" tires. The rear now feels European car solid... I like that!
I will update with driving impressions as I get some miles on the unit. Also, I will be installing a new set of Bilstein HD shocks with it once Kolak gets them to me... I will also share some of my concerns with you guys that are interested as we go along...