I'm working on a Model A Jalopy, kinda thing. Best I can figure the chassis is a 30-31. I bought (but haven't got it yet) a 55 Chevy rear that was in a 32 Ford pick-up with the stock 32 spring. Does anyone know off-hand if it will bolt in to the Model A frame? If not, why? Thanks, Gene.
The 32 spring has a soft arch in two directions. The A spring has a sharp arch upward. They couldn’t be too much different if you tried.
You could build an offset mount off the rear crossmember and mount it that way. I don’t recall the spring offset distance.