8.5", 8620, 3 Series

8620 Street Gears, '70 - '76 Chevelle & Olds F85, '70 - '75 Chevy II, '70 - '81 Camaro/Firebird/GTO | 1.625" diameter pinion stem, 30 spline pinion | 3 Series Carrier, 2.73 and numerically higher, or MW spool.
Uses install kit P/N 83-1021 for posi / open carrier applications. Uses install kit 83-1021-S for applications with a spool
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10 Bolt 8.5

$197.21

10 Bolt 8.5" Street Gears, 3 Series - 3.08 Ratio

Product Code: G885308

Motive Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$240.52

10 Bolt 8.5" Street Gears, 3 Series - 3.42 Ratio

Product Code: 429-0278

Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$157.91

10 Bolt 8.5" Street Gears, 3 Series - 3.42 Ratio

Product Code: 2020642

Dana Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$234.77

10 Bolt 8.5" Street Gears, 3 Series - 3.73 Ratio

Product Code: 429-0041

Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$150.22

10 Bolt 8.5" Street Gears, 3 Series - 3.90 Ratio

Product Code: 2020954

Dana Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$229.01

10 Bolt 8.5" Street Gears, 3 Series - 4.10 Ratio

Product Code: 629-0165

Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$195.29

10 Bolt 8.5" Street Gears, 3 Series - 4.10 Ratio

Product Code: G885410

Motive Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$195.29

10 Bolt 8.5" Street Gears, 3 Series - 4.56 Ratio

Product Code: G885456

Motive Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$234.77

10 Bolt 8.5" Street Gears, 3 Series - 4.56 Ratio

Product Code: 629-0167

Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

10 Bolt 8.5

$162.00

10 Bolt 8.5" Street Gears, 3 Series - 4.56 Ratio

Product Code: V456GM8.5

Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.

More info

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