How do I rebuild transmission on a 1975 Oldsmobile Cutlass Supreme?

Answer 1

Which tranny are you talking about? T.H. 350 probably, maybe its the T.H.400. I wouldn't try to rebuild one no matter which one it is. After you purchase a entire overhaul kit,tork converter(sic), and other stuff(fluid,tools,manuals), You would be far better off leaving it to a professional. Locate a transmission shop that displays the"A.T.R.A." logo on their shop, hire them to do it. Probably pay around $600.00 for either one. Hint, start off with one that still works at least you'll know the case is still good. I've had three rebuilt(2-T.H.400's,1-T.H.350), in the last ten years and never had a problem with any of them. One of them I've had it pulled apart after 60,000 mi. so they could change the tail shaft from a intermediate(Delta 88), to work in a "A" body(Cutlass). Although you could probably have used a tranny sourced from a "B" or "C" body it would put the front "U" joint beyond the cross-member. And given the way alot of people "use" their Cutlass's, especially when equipped with a 455 (T.H.400), that may prove to be a very bad idea! Incidentally, the vehicles I've done this to are 1975,76 Cutlass's, one is a "S" the other is a Supreme(brog.). I could describe in great detail the process of converting a "K" or"R" motor equipped car to a "T" code car. It's a fairly simple process as many of the parts are not model specific and cannot be identified fom original equipped vehicles. The last problem I have to solve is how to install the re-circ. line back to the fuel tank on a assembled vehicle. I'm sure I'll "get 'er done". See-ya'.