51 cab suspension

[skip99]

with the cab mounted using the frame mount at front and the stock swing arm type of mount at the rear, the cab looks like it sits too low in the back, so I unbolted the stock stuff , and raised the rear about 5/8" . now the door belt line runs parallel to the bed rail, and looks nice.

question...can I simply mount the cab to the frame in the rear like the front?

solid block or thick rubber bushing? maybe a small block with 1/4 " rubber on top and bottom?

theres about 1 1/4" space between the frame and the reinforced area on the cab with where it sits now...