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Ok, a little bit confused now; if poly is not really the way to go.
Then it should be OEM rubber bushings, but where do you suggest a good place to buy them.
Because I have seen the rubber bushings in my 94 Vette and they are starting to crack so I need to decide what to do.
Please suggest, by the way my Vette goes to Track days sometimes.
I have an '86 4+3 that I did the full SuperPro bushing set on. Have had it like that for a couple years of AutoX and tracks days. I daily the car too, so I didn't want delrin or anything stiffer.
Everything seems fine. I'm also not a professional racecar driver so my input on if they have helped or hurt suspension performance isn't very useful, but it all seems fully functional to me.
I used a lot of grease when I installed them. I think I used silicone grease from Super Lube. I have had 2-3 instances of noisy squeaks, but found them by feeling around while bouncing the car. I just crammed more grease onto them and it went away.
I am refreshing an '89 Z51 this winter for track days and decided to go with the SuperPro stuff again.
I took rough durometer measurements at work and the SuperPros were between the original rubber and some random Energy Suspension and Prothane polyurethane bushings (steering rack and rear spring bolt bushings) that I had. SuperPro was closer to the other poly stuff than the original rubber though.
From what I understand, you can't get rubber bushings anymore. If someone proves me wrong though I bet plenty of people would be happy.
What about using Super Pro bushings? They're pliable and lubrication is recommended to insert them and not for the i.d. I recently installed them on my 94 LT1. Less than 2 of the small tubes supplied with the kit lubed all the bushings. I decided to go with Super Pro because of other guys first hand experience driving with them. After 1,000 miles on them, I'm still happy with them. They are recognized for not squeaking.
If you go back to Post #4 in this thread (16 years ago), it explains why regular hard poly bushings are not good in the rear trailing arms and camber rods: they have to move in two different planes, and hard poly only allows for one plane of movement without lots of bind. You can't buy rubber bushings anymore, so that option is also out. That leaves either rod-ended links or SuperPro. The former works great and has the additional benefit of getting rid of the awful eccentric camber adjustment. OTOH, they are pricey. SuperPro has enough flex to be a good facsimile of the stock rubber bushings, so they are a great option if you don't need extra camber adjustment. I don't really understand the instructions to not lube the ID of the bushings: the metal sleeve needs to rotate within that bore. But whatever, they must work because people are happy with them.
"(16 years ago)"
Whoops, my bad. Still learning how this forum works. Weird that this thread showed up near the top when I sorted by most recent.
This forum has an odd way of putting related threads (what it thinks are related) below the one you have open. It's easy to scroll past the end of your intended thread and into the "related" one, and that related one may be really old. Then you end up pasting in the old thread instead of the thread you thought you were still in. No worries.
What about using Super Pro bushings? They're pliable and lubrication is recommended to insert them and not for the i.d. I recently installed them on my 94 LT1. Less than 2 of the small tubes supplied with the kit lubed all the bushings. I decided to go with Super Pro because of other guys first hand experience driving with them. After 1,000 miles on them, I'm still happy with them. They are recognized for not squeaking.
I have a full set of Super Pro bushings that I'm going to install in my '96. Have heard nothing but positive reviews about them.
