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i purchased a rubber kit with upper, lower, bolt and washer that says 63-82 on whole package, but the bushing package says 63-79 and the upper is deffinately smaller in size, looking on all vendor sites, no one seems to have the 80-82 upper bushing. is it ok to use the 63-79 upper bushing ? thoughts/feedback are appreciated ( i see where some sites sell 82 upper, but says SMALLER, thoughts??)
The 80-82 uses a completly diffrent mounting system than the 63-79 with possibly the same Bushing on the Forward Mount. So unless it looks the same its not. Try VB&P or Energy Suspension. A call to most of the major Venders spec the 80-82 will probably produce what you need as well.
The bushing on the 1980-1982 cars had a smaller hole than the 1963-1979. GM and all other manufacturers discontinued this bushing about three years ago. The solution is to enlarge the hole in the snubber mounting bracket a tiny bit. The bushing will work and install just fine once this is done.
I know its a PITA, but it is the only way to replace the cushion with one that will work.
The bushing on the 1980-1982 cars had a smaller hole than the 1963-1979. GM and all other manufacturers discontinued this bushing about three years ago. The solution is to enlarge the hole in the snubber mounting bracket a tiny bit. The bushing will work and install just fine once this is done.
I know its a PITA, but it is the only way to replace the cushion with one that will work.
Willcox
When I replaced mine quite a few years ago, replaced it with a poly bushing since poly handles greases/oils better than rubber. Had a leaking pinion seal at the time. Glad I did, even though the pinion seal leak fixed when new rear end put in.