???? spring perches for a cab?? do you mean the cab mounts that are riveted to the frame for the front cab mounts?...if so they sell what is called 'frame saver washers' already cut out to the correct inner diameter for the bushings... that you cut out to fit and weld in....alot easier than doing the whole cab mount swap, but if you want to go that way I am going to be parting out a 78 soon and I can see how they are
Yea I didn't mean to put spring in there. They're already off the frame for blasting so it would be easier to bolt on a better/new set rather than fix these if someone had them. Let me know how the ones on that 78 are.