Quote:
Originally Posted by TJ's GMC
I do have a question though....anyone have an NP435 tranny behind their v6? Looking at the closer split between gears I may lean towards a swap. Looked into a gear vendors OD and said "**** No!!!" when I saw the price. lol
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My 2WD '67 has the NP435. Per the '67 sales brochure, it was the "heavy duty" optional 4 speed compared to the SM420. Starting from a stop in normal driving, you still start in synchro second, just like in the SM420. Non-synchro first is definitely a taller gear in the NP435, though, compared to the SM420. The shift pattern is different too -- reverse is to the right and down. The "bar" in the H between second and third is pretty narrow too. If you're used to shifting from second to third in an SM420, you'll overshoot third every time in the NP435 and go too far to the right and end up above reverse.