This topic has gotten way of track guys. This was all about 86-89 convy's you should consider starting a new thread for the discussion your having. I am looking for help for my rod, but now it is so convoluted I will have to start another. My car is old enough it will approach classic recognition in a few years so I would never modify it like you guys are talking it totaly would ruin it's value. All original on older ones is the way to go to make it collectible and desired.