I need to replace the crummy rubber offset transmission mount in my 83' Bonneville wagon. I have a manual trans and the shifter is banging against the floor any time I hit a decent bump. They don't make that mount in poly yet. I have a G-force crossmember and I want to use that with the normal GM poly transmission mount. I can't find those rubber insulators that go between the frame and crossmember, and the originals look shot. Has anyone found a source for these? I was thinking of just hard bolting the crossmember right to the frame, and hoping the poly mount would keep the vibrations down. Has anyone tried this? It's a street car so I want to keep the noise down.