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Old 10-02-2012, 11:53 AM
xxllmm4 xxllmm4 is offline
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Help picking out gear ratio

Hey everyone,

I'm about to change out the ring and pinion on my 58 chevy pu and would like to know what you think as far as gearing. I'm thinking 3.73 or 3.90 with 27.5" tall tires and a TH350 trans.

Engine specs,
Chevy 383 all forged XE 274H Cam W 1.6 roller rocker arms
RPM Air Gap intake
Holley 850DP Carb
Vortec Heads 9.3 Comp
120hp shot of NOS

The truck is for fun, no gas milage concerns. Not much freeway use but I don't want to go too extreme with gearing. The engine makes a lot of torque so I'm just not sure exactly where I should be on gearing.

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