my 88 feels a lot looser in turns / changing lanes etc then I think it should, like ill start to turn then it feels like it just wants to start turning more(backend feels like it just wants to 'keep going')... I checked all bushings / bearings, they seem to be good, the car just received new tires not long ago, and an alignment, and ive checked tirepressure in all 4 corners, anything else I should be looking for?
Check the torque on the long bolt for the lateral links. It likes to come loose and then allows the rear wheels to toe in/out under throttle/braking. If thats good, check the torque on the short bolts on the lateral links as well.
Depending on sidewall stiffness of the tires as well as the profile height, it is possible to feel the rear of the car moving side to side as the sidewalls flex.
Tony_C and hookedonspeed, I concede. I have an 88, but have never had the need to go under the rear end, though I purchased a full set of Dickman ball joints for it. They've never been installed. I mis-read the link I posted above.
You say the bushings "look" good but they are 25 years old. They could still be worn, deformed, cracked, or dried out. I know this is a bit different but this is the dog bone I replaced because the bushings weren't CENTERED in it. When I got it out, look what I found. This is from my garage kept 62K mile automatic GT.
This damage was not visible at all while installed. Maybe you should lean on Rodney to finish up his 88 bushings kit.
I recently got tired of the sloppy feeling in my 88's rear end and an odd knocking noise that was getting worse and worse under acceleration. Turns out the cradle and suspension link bolts had all come loose to some extent and the knocking was b/c the passenger side rear cradle bold which had backed out 5/8". under accel, the cradle would knock up against the rear frame rails. After tightening all the suspension and cradle bolts there was much less slop, but the car will now turn slightly to the left when I mash the pedal. I think this remaining problem is being caused by worn out rear struts.