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Old 10-21-2006, 09:08 AM
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ratio

I need to know the gear ratio in the stock 55 powerglide rearend.


thanks tc

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Old 10-21-2006, 09:30 AM
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well...... a powerglides gear ratio is
1st - 1.82
2nd - 1.1
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Old 10-21-2006, 12:26 PM
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ratio

I found the answer in some of my old chev books, and the rear end is 3.55.1 with the powerglide.
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Old 10-21-2006, 01:38 PM
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Quite possible......many ratios were available. Lots of powerglides also used 3.36 rears too.
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Old 10-21-2006, 05:13 PM
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yep, poncho's got it. b4 1955, there was 2 gear ratio's 4.10's for 3spd manuals and 3.55's for the PG's, but in '55 when the V8 came out, many ratio's were available.
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Old 10-21-2006, 05:21 PM
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A stock '55 with powerglide would have got a 3:36, possibly a 3:55 rear end.

There was some change between '56 and '57 so it is possible the '55/56 got a 3:55 rear.

I know for a fact my '57 with original 283, powerglide has a 3:36 rear in it.
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