Picked up a new set of mounting rubber for the radiator and cab this week. I was hesitant about the cost because the bolts are no good to me as they will need to be the "lift puck length" longer - presently it is at 2 5/8".
I have to say receiving the mounts yesterday, I am surprised at the difference and glad I decided to go with new ones. These things look totally different than the OEM ones on the truck. I can see that 2 5/8" body lift number dropping because comparing the new rubber and the original on the truck I may get and inch of body height just by replacing them.
Next - longer bolts.

Added pics to the flickr page: 63' Body Lift


cavebull
Stovebolts - so easy even a Cavebull can do it.
https://www.flickr.com/photos/dodsonbrett/collections