That was the measurement I could not find. I will check that and see where I am at. Are you saying that the front of the cab should be the same from frame to floor as the rear of the cab.
The number of shims does not work here since I drilled the holes for the cab mounts but like you said, the front mounts could not change. I did make sure the old rubber piece was removed so I know the front is setting right. Thanks for your help.

If you never tell a lie, you never need to remember what you said.