GM 10-Bolt 8.5", 3 Series Street Gears

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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3.42 GM 8.5" 10 BOLT 8620 RICHMOND
3.42 GM 8.5" 10 BOLT 8620...
Product Code : 429-0278
3.42 GM 8.5" 10 BOLT Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$414.99
3.42 GM 8.5" 10 BOLT Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
3.73 10 BOLT CHEVY 8.5" (8620) RICHMOND
3.73 10 BOLT CHEVY 8.5" (8620)...
Product Code : 429-0041
3.73 10 BOLT CHEVY 8.5" (8620) RICHMOND Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$389.99
3.73 10 BOLT CHEVY 8.5" (8620) RICHMOND Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
4.10 10 BOLT LATE (8620) RICHMOND GEAR
4.10 10 BOLT LATE (8620) RICHMOND GEAR
Product Code : 629-0165
4.10 10 BOLT LATE (8620) RICHMOND GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$439.99
4.10 10 BOLT LATE (8620) RICHMOND GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
4.56 10 BOLT CHEVY (8620) RICHMOND GEAR
4.56 10 BOLT CHEVY (8620) RICHMOND...
Product Code : 629-0167
4.56 10 BOLT CHEVY (8620) RICHMOND GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$414.99
4.56 10 BOLT CHEVY (8620) RICHMOND GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR
5.13 70 10BOLT LATER NEW STYLE CHEV...
Product Code : 629-0169
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$414.99
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR
5.13 70 10BOLT LATER NEW STYLE CHEV...
Product Code : 629-0171
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$380.99
5.13 70 10BOLT LATER NEW STYLE CHEV GEAR Richmond Gear. Fits 3 series carriers. 8.5” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.