I sent Jim Carters a photo of my rear motor mounts and they said they havent ever seen them. I have a 1946 one ton GMC with a 261 engine that has been replaced from the original 228.the transmission is a 4 speed and has a 11" clutch.The rear motor mounts are round cone shaped rubber bushings housed in a steel housing that bolts to the crossmember in the frame.If anyone knows where I can find replacement bushings for this rear motor mount I would be forever greatfull.I tried the search page but had no luck,please help I do not want to reuse these as they are in poor condition Thans again for your help