Here are a few pics of the rear mounts off my 50

...click...

I also had no rubber between the rear schackles and cab bottom.
I did not use the rubber that came in the kit. The bushing in my schackles were in good shape. I just put a light coat of G.P. grease and reassembled the schakles.

The new rubber bushings looked to long to me. If I had used them I would of had to cut them down.

Good Luck