Richmond Gear EXCel Ring and Pinion Sets 12BT456T GM 8.875 in. (12-bolt) truck 4.56 Gears
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Upgrade your GM truck’s rear end with high-quality performance and reliability built into every gear set. The EXCel 12BT456T from Richmond Gear is designed for the 8.875″ (12-bolt) GM truck differential, delivering a 4.56:1 gear ratio—ideal for enhanced acceleration, stronger towing capabilities and improved throttle response.
Why this gear set stands out:
Precision-engineered for generational use – Built for 8.875″ 12-bolt GM trucks, this ring & pinion set aligns with OEM geometry for superior performance.
4.56 gear ratio – Offers a notable boost in low-end power and acceleration while maintaining highway drivability.
Heavy-duty build – Manufactured with premium steel and heat treatment, engineered to handle everyday driving, hauling and even moderate performance use.
Plug-and-play form factor – Designed for factory 12-bolt GM truck cases, keeping installation simpler and reducing the need for other modifications.
Trusted brand heritage – Richmond Gear has a strong reputation in the differential gear aftermarket for quality and reliability.
Final Pitch:
If you’re ready to upgrade your GM truck differential with a gear set that offers performance, durability and a direct-fit solution, the Richmond Gear EXCel 12BT456T is a smart choice. Whether you’re hauling gear, towing trailers or simply want stronger off-the-line performance, this gear set delivers the goods. Add it to your build and feel the difference.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.