The new poly bushing dog bone from WCF is great looking and installation was perfect. However I notice a lot of motor vibration on the steering wheel now. Sugestions please; live with it or return to origional rubber insert dog bone or is there a fix?
Likely if you have the rubber motor and transmission mounts you are just transfering the engine vibration through a single point which is the dog bone mount. The poly has a lot less give to it, so the engine is basically rigid at the dog bone while the bottom is free to bounce around on the rubber. Larry
Most people use all poly I think, don't know if that woudl solve your problem or make it worse. Yes, there are poly transmission and engine mounts for Fiero. Same place the poly dog bone came from. Larry
I did the same thing when I had the engine/trans out on my '88GT: poly dogbone and new rubber engine and trans mounts, but I never had any problem with vibration. Maybe because the '88 V6 is internally balanced? '88 cradle is bolted directly to the frame unlike 84-87? Maybe your engine is running rough? I don't know why the engine vibration should be excessive if everything is balanced, running smooth and straight. If nothing else, could/would you put in a new rubber dogbone?
I purchased the poly dog bone from The Fiero Store in 1997 and haven't had any problems. The stock mount was shot (rubber was worn out), and there was a loud "thunk" when I changed gears. TFS's mount completely solved that problem.