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Early 392 transmission

RS16017

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For years I've been trying to decide the best way to put a standard transmission(4, 5 or 6 speed) behind my '58 Imperial 392. Recently I've read about the NV3500 being an almost bolt in application. I already have a 727 with adapter in my '67 Belvedere. I'm worried about gear ratios. The car already has a 4.56 gear set in the rear end. I read where the NV3500 first gear is 4.04. Would this transmission work with the gears I'm running and still be drive able.
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You wouldn't need first gear.
4.56 X 4.04 = 18.42

Now a 3.91 and 727 would be
3.91 X 2.45 = 9.57

So you could have 2.76 rear end with the NV trans
2.76 X 4.04 = 11.15 that's better.

Just simple math, run some numbers.
 
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