Hmmm… yet another indecision impasse. I’ve decided on AKG subframe bushings (their softer, blue, 85a ones). Here’s the rub… $40 for their differential matching 85A diff bushing, or $135 for solid rubber (link below)?
http://store.vacmotorsports.com/bmw—z3m-z3-e30-m-rubber-differential-mount-bushing-p428.aspx
Have not decided on RTABs yet – oem or AKG 85A.