I came across a junk yard recently that has a ton of cars in there with 200-4R transmissions. Unfortunately, no Turbo Regals or Grand Nationals, 442s, or Monte Carlo SS's that I've seen yet. Probably going back this weekend to look around some more. There are plenty of Buick Regals, Olds 88s, Caddys, and other models that have the transmissions still in them. The great thing is that they will sell the transmissions for next to nothing. Now, I've only built one 200-4R before and it was just a stock rebuild for a guy's 87 Monte Carlo SS. What I would like to know, is there any certain 200-4R that I should look for, if I can't get one out of a turbo car? I need one for a fairly heavy car, a 1970 Monte Carlo, that's running a built 355 that is pushing around 400 hp at the flywheel. My wife is wanting a 200-4R put in this car so that she can have an overdrive, and not have to make too many modifications to switch from the TH350 that is currently being run. Just wondering if there is any certain car I should keep my eye open for to grab the tranny out of. I may just go ahead and grab a few of them with the price that they are offering them for.