I have a 65 Barracuda with a slant 6 - three on the tree want some transmission/engine advice

toolmanmike said
I had a 903 in my 65 Dart. Never an issue. I might have downshifted from 3-2 at times but didn't slip it into 1st until I stopped. I do that with the 833 in my 66 as well. It's a style of driving. Oh, that 903 in my 65 was behind a HP 273. I wish I could have kept that one.
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Are you sure it was a 903? All the 3 speeds I've seen behind a 273 were the 745 model. Still not ideal, but, stronger than a 903. Every 903 I ever pulled (25-30) needed an input bearing, and all but 2 needed 1st gear too.....and these were all behind a S6.