Upper control arm (Page 2/2) 82-T/A [At Work] JUL 02, 07:39 AM quote Originally posted by 1985 Fiero GT: Didn't you use poly on your bushings? If so then that doesn't matter, only for rubber, poly is meant to rotate around the inner sleeve, rubber is bonded to both the inner and outer sleeve, so by doing it wrong you can tear it, but with poly it just rotates freely. I missed this... sorry. Well, it came out nice, and it certainly looks cool: ... but the truth is, I'm not 18 anymore. The car has been in storage for going on 14 years now. I don't remember having a difficult time installing the control arms or tightening them down. But I'm not sure I want the rough ride that goes with it. I do want the increased stability, but I'm told that polyeurothane quickly deflects after a few thousand miles and it ends up getting worse than if you'd just kept rubber in there. I'm not sure either way, but my goal was to originally maintain a somewhat less-harsh ride, while improving stability in the control arms. There's a combination (which I forget) where I think you use poly on the top, but rubber on the bottom for the best results. That way you don't get all the road vibration, but the top helps keep it from deflecting too much. To be fair, I'll probably leave it for the time being (when I eventually get the car out of storage) and finish up the rest of the car... drive it and see how it is... and then update it. But like everyone was saying here, when I installed it, I torqued everything down with it on jack stands... which is not what you should do. 1985 Fiero GT JUL 02, 07:51 AM quote Originally posted by 82-T/A [At Work]: There's a combination (which I forget) where I think you use poly on the top, but rubber on the bottom for the best results. That way you don't get all the road vibration, but the top helps keep it from deflecting too much. But like everyone was saying here, when I installed it, I torqued everything down with it on jack stands... which is not what you should do. That combination discussed was poly rear, rubber front, with solid or poly cradle mounts, but probably new rubber all around is best, with rubber it needs to be torqued at ride height, poly it doesn't matter where it is torqued, as it does rotate "freely". 82-T/A [At Work] JUL 02, 08:04 AM quote Originally posted by 1985 Fiero GT: That combination discussed was poly rear, rubber front, with solid or poly cradle mounts, but probably new rubber all around is best, with rubber it needs to be torqued at ride height, poly it doesn't matter where it is torqued, as it does rotate "freely". I could have sworn there was another conversation (maybe a couple of years back), where someone said poly on top and rubber on bottom for the front, but you're probably right. See, this is what happens when you get old. 1985 Fiero GT JUL 02, 09:42 AM quote Originally posted by 82-T/A [At Work]: I could have sworn there was another conversation (maybe a couple of years back), where someone said poly on top and rubber on bottom for the front, but you're probably right. See, this is what happens when you get old. Oh ok, well I don't know anything about a couple of years ago, I was just referring to the one a few months ago.