GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

what size gears

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Old Mar 26, 2006 | 09:28 AM
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Question what size gears

Does anyone know how I can tell what size gears I have in the rear. Maybe by the VIN or other Numbers in the glove compartment
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Old Mar 26, 2006 | 02:18 PM
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Default More info

Tires 255/70/16 70 mph in 3rd gear about 2700 RPM stock tranny
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Old Mar 27, 2006 | 01:32 AM
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i think there is tag on your axle? someone correct me if im wrong
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Old Mar 28, 2006 | 07:20 AM
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I Called my local dealer,gave him my VIN and he pulled it up. It's 3.42's and the size is 8.625" Thinking about going with 4.10's and a true posi. Any Suggestions
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