I’m sure this has been asked many times but I searched and couldn’t find an answer. I’ve got a 1960 Apache stepside with a sb 350, th 350, and original x frame torsion bar suspension. The P.O. put a long set of headers and ran the exhaust 4” under the frame. I’m going to put a set of ram horn manifolds and try to run the exhaust all the way out the back above the frame. I can see enough room to go above the tranny crossmember but it looks very tight above the torsion bar cross member and x frame and under the cab. Any thoughts or advice?
Thanks,
Dave

A V-8 and an auto trans were available in a 60 truck. They used rams horns and a single exhaust with a cross over pipe. It's unlikely that the original pipes can be obtained but a good muffler shop should be able to fabricate a system that will clear whatever interference it has.
Fred