One thing to watch for...sorry not to have thought of this previously, but it can always be adjusted if need be. The pads you get today for the front of the cab are not the same as original. Big surprise, eh? They may look like the right height, but when used, they compress more. This wouldn't be a problem, because they more or less compress equally, however on the passenger side, your cab can start touching the frame and this will transmit a lot of noise you (a) don't want and (b) may even have trouble diagnosing. If you need to raise it a bit, you can go to a hardware or plumbing supply store and buy 1 foot (probably 1ft x 5 or 6 feet long) of shower pan liner. This is a PVC material and it won't compress much at all. Cut it into about 2" x 2" pieces put a hole in the center and use a jack/piece of wood to lift each side of the cab up where you can slide these in there. In fact if you have hammer punches (real common and today all made in Egypt, India, somewhere like that) you can make your own mounting pads using the special cement they use for this pvc shower liner and they'll be infinitely better than what you get today.
