GM 12 Bolt Passenger Car 8620 Street Ring and Pinion Gears

Name: GM 12 Bolt Passenger Car 8620 Street Ring and Pinion Gears
Brand: Mark Williams Driveline
SKU: GM12PRP-331
Price: 275.0 USD
Availability: InStock

Mark Williams Driveline

SKU: GM12PRP-331

$275

Gear Ratio 3.31 3.42 3.55 3.73 4.11

Quantity

Racing Use Only, Not Legal for Road Use

Ring and Pinion sets for GM 12 Bolt 8.875 rear ends. These premium 8620 street / strip gear sets are a great drop in option for your factory GM 12 bolt rear end.

Fits GM 12 bolt car style rearend
30 Spline Pinion
Premium Quality Gear
Manufactured with 8620 Heat-Treated Material

SUBSCRIBE NOW

Sign Up Today - Get Our Newsletter & Save!

Helpful Links

Customer Service

Mark Williams Enterprises

Shipping Address:
Mark Williams Enterprises
765 S. Pierce Ave.Louisville,
CO 80027

sales@markwilliams.com

Call: (866) 508-6394

Phone Hours:
8am - 5pm Mountain Time M-F
Closed Saturday & Sunday

*ULTIMATE TRUCK/RACE TRAILER GIVEAWAY. NO PURCHASE NECESSARY TO ENTER OR WIN. A PURCHASE WILL NOT INCREASE YOUR CHANCES OF WINNING. Open to residents of the 48 contiguous United States and the District of Columbia (excluding AK & HI), who are legal age of majority. Void in the states of AK & HI, and where prohibited. Begins April 20, 2026 and ends 11:59:59 PM ET on May 17, 2026. One Grand Prize is valued at a maximum of $130,000 USD. Odds of winning depend upon the number of eligible entries received. See Official Rules for complete details including how to enter without making a purchase. Sponsor: Motion Raceworks LLC, 112 E Industrial Street, Dewitt, IA 52742. Mail-in entries will not be accepted at this address.

GM 12 Bolt Passenger Car 8620 Street Ring and Pinion Gears

Follow Us

Helpful Links

Customer Service

Mark Williams Enterprises

© 2026 Mark Williams Enterprises,
a Motion Raceworks Company

YOUR BAG

Your cart is currently empty.

Back to shopping

Subtotal:

GM 12 Bolt Passenger Car 8620 Street Ring and Pinion Gears