1961 Oldsmobile Dynamic 88. Framne off restoration. Im seeking sources for body bushing kits. Any suggestions would be appreciated.

 

Try Inline Tube. I purchased a set of bushings from the recently.

 

I'm in the same dilemma myself. I have a 63 Dynamic 88 with the body off right now.
Everybody and their cousin offers body bushings for "A" bodies (Cutlass). But "B" bodies not so much.
I have found one ray of hope in the Pontiac world however.
Ames Performance Engineering and Original Parts Group offer body mounts in their full size (Catalina, Grand Prix, and Bonneville) catalogs. They are listed individually. And are illustrated showing the dimensions of each.
There are twelve mounts on my car. Six big round ones. Two small round ones. And four square ones.
The two small round ones and the four square ones I found similar ones in the Ames catalog. For the six large round ones, I found some in the OPG catalog. While not quite as big I'm hoping they will do the job.
I would suggest getting a catalog from each of the firms and compare what they have with your mounts. Good luck.

http://www.amesperf.com/html/download.html

https://www.opgi.com/restoration-par...e-catalina.asp