Thanks gents for help. The 4 cab mounts have been changed. I had placed 48” level across the front bumper braces and bubble is in between the level Lines. However this early 3100 has 5 cab mounts, the one in the center aft has not been overhauled and I haven’t found any supplier for the bolts and bushings. Many attempts to find a repairable center mount on EBay but no luck.
Also placed same level inside cab A pillar to A pillar, bubble within the lines. Months ago I had place the level between the rails at the rear support and thick the bubble was as stated above.
I’ll put the truck on towers and take dimensions as you suggested.
