I have a 56 Chevy 1/2 ton with the original 3-speed Saginaw column shift transmission, and I am looking to convert it to overdrive.
The overdrive transmissions that I've found for sale are either coded R10Q or R10H on the tailshafts. What is the difference between the two (if any at all)?
I've searched through the archives and the best guess that I can come up with is that the R10Q was used in trucks and the R10H was used in cars. Other than that, are there any differences in the two and would they both swap easily with the original three speed saginaw?
Any insight would be greatly appreciated!!
