I see there are a number of threads on control arm bushings. One thing to keep in mind is that the stock rear upper arms take the most beating. You're likely to find movement in them while the lowers and the 130ft lbs clamping them seem to last forever (a little surface weathering doesn't compromise the bushing).
So, if you are considering replacing the uppers with Moog, go with the "CK" versions which use Clevite bushings. The cheaper "RK" versions use a regular bushing as do all the bushing kits that you press in to the arms. You can also get a "CK" front upper arm but it only has the Clevite bushing in the rearward end.
So, if you are considering replacing the uppers with Moog, go with the "CK" versions which use Clevite bushings. The cheaper "RK" versions use a regular bushing as do all the bushing kits that you press in to the arms. You can also get a "CK" front upper arm but it only has the Clevite bushing in the rearward end.