speedo gear

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Dec 4, 2015 | 08:21 AM

vette_20

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speedo gear

Hi just changed my diff to 3.5 can anyone tell me what color speedo gear it should have ,I have turbo400 and its standard rally wheels
thanks ian from aussie

Dec 4, 2015 | 11:53 AM

MelWff

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the wheels are 15" but what diameter tire are you running? there are sites where the gear can be determined but you need to supply tire diameter and the 3.55 gear ratio,

Dec 4, 2015 | 04:57 PM

0Willcox Corvette

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From: Jeffersonville Indiana 812-288-7103

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Quote:

Originally Posted by MelWff

the wheels are 15" but what diameter tire are you running? there are sites where the gear can be determined but you need to supply tire diameter and the 3.55 gear ratio,

If you know how fare off the actual speedometer is, you can make a tooth adjustment based on 1 tooth = 5 mph +/-.

According to the factory chart with the factory tires and wheels.. a 1975 with the turbo trans would use

Drive gear 8623310
Driven Gear 1362048 40 tooth black.

Willcox

Last edited by Willcox Corvette; Dec 4, 2015 at 05:03 PM.

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