I purchased a cab mount kit for my 59' from Brothers Truck (
https://www.brotherstrucks.com) that has rubber body mounts. I'm not sure if they carry a kit for a Suburban, if not it shouldn't be that difficult to adapt a truck cab mount for your needs. he kit came with all new hardware as well. Good luck.
Thanks, I have heard about those, but if I not wrong, they are very thin, very hard rubber squares used only to prevent metal-to-metal contact between body and frame, they are not there for noise and vibrations. I was thinking going thicker body bushings.
