GM 12-Bolt 4 Series Car Street Gears - Mark Williams Enterprises, Inc

4 Series Car

8620 Street / Oval Track Gears '65 - '72 Chevelle / Chevy II, '67 - '72 Camaro, '70 - '72 Nova / GTO / Firebird | 1.625" diameter pinion stem, 30 spline pinion, 4 Series (Original Carrier 3.73 and numerically higher). These gears are manufactured from 8620 alloy and are primarily for street, oval track, and lighteweight drag racing applications. Gears are designed to provide excellent service life, but are susceptible to high shock loads. Uses install kit P/N 83-1019.

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GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0031
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$339.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0378
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$424.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0032
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$532.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0034
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$429.99 $365.85
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0035
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$324.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0037
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$328.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : L629-0378
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$472.33
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : G888456
Motive Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$453.99
Motive Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : G888411
Motive Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$319.99
Motive Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 429-0096
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$319.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
GM 12 Bolt 8.875
GM 12 Bolt 8.875
Product Code : 629-0033
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.
$240.99
Richmond Gear. Fits 4 series carriers. 8.875” ring gear diameter, 1.625” diameter pinion, 30 spline, 8620 alloy.