I pulled the front and rear mounts from a wrecked 53 chassis. Get the bottom pieces as well. The u-bolts will be the same as you have now.
I also did some measuring of the bracket hole locations on the 53 chassis to help me set up the upper mounts. Lower brackets on the axles don't need anything special as they only fit one way.


1949 Chevy 1/2-Ton
"Sedgewick"
In the Gallery
1989 Caprice