It already has 4 inches of lift and 33's, a quirky Holley carberator, NP 205, SM465 4 speed manual, D-44 up front and Chevy 12 bolt rear. The engine is not the original 350 but a 305 with headers and I think a cam kit (just rebuild with 6000 miles on it) but other than that its not bad for being 30 years old. My question is, I also have a 73 and my 72 is missing a side glass out of the topper shell and I wonder if one from the 73 with fit it? Also if I have any drive train problems right off can I swap in the auto trans (turbo 350) from the 73? What about the NP203 full time case if I need it, and the axles? Thanks in advance.