I was looking at the tri5 truck specs and I see a 1508, 3100, 3200, 3400, 3500, 3600 and more all the way up to 10000 series. Many of them have different body dimensions too. Why so many series? Is it the difference between a 1/2 ton and 3/4 ton and larger truck? What is the most common truck that you guys hotrod?
http://chevy.oldcarmanualproject.com...esto/56130.htm