[Alex van de Wetering]

Bob, Mike,

Thanks for your replies.

The horseshoe-shaped frame on my C8 was pretty crusty. I was lucky to find a replacement frame from a cab13. It seems the basic pressing on the 11/12cab frame is the same as cab 13....but the brace is in a different location and the open ends are cut differently (picture 2 shows cab13 top, cab11 below).
I drilled out the spot welds of the brace and welded it in the proper location for a cab11 ....than cut the ends to match the 11cab frame and swapped over the missing captive nuts.