Garage built Buick....GN

[SSLance]

First off I love this build...



I have a set of PolyGraphite body bushings setting on my bench ready to go in my car. My concern is more geared towards attaching the frame as tightly as possible to the body rather than lowering the body itself...but the cutting of the mounts with a bandsaw interests me greatly. I have heard and read that it can be necessary to trim one or more of the bushings to get equal pressure on all of them between the frame and body. 3/8s is more than I have heard though...curious if you ran into any other clearance issues such as trans cross member humps or bumpers? Also, how did you decide on the 3/8s trim? Careful pre-measuring first or just lopping off, putting in place and seeing how they landed?

My plan is to get all of the new PolyGraphite bushings in place first, then start slowly replacing some of them with solid bushings to help firm up the frame flex. I'm curious of how I am going to get all of the bushing heights as best as I can though...should be fun.