ChiefJones Posted March 8, 2012 Share Posted March 8, 2012 I have two 70 Montes and I am getting started on one of them just making it a driver. The second I am doing a frame off and converting it to a 4 speed. On the first one it currently has a 2 speed automatic, the shift indicator on the dash has P,R,N,D,L the other one has a 3 speed auto with P,R,N,D,2L,1L the first thing that has me confused is what type of transmision the 2 speed is. They both have TH350 shaped pans but the 2 speed has a much longer tail shaft. My next issue is that the 2 speed isnt working in Drive or L but does work in reverse. I would like to fix or replace it to keep this one stock as posible but dont know how a 2 speed will work with a strong 327 or built 350. I have both and not sure which one I am going to drop in. So then I am wondering how tough would it be to put the TH350 I have in the second car in the first? Any and all thoughts on this stuff would be appreciated!! Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted March 8, 2012 Share Posted March 8, 2012 The 2 speed is probably a powerglide they did use some of them in the montes. They are kinda weak in orig state but I have seen some racers use them but they have to be built right to withstand high horsepower. There ok aas a stock tranny as long as they dont get beat on to bad. that was pretty much the primary tranny used by a lot of the 60 chevys and other gm cars. Quote Link to comment Share on other sites More sharing options...
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