Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
FREE 1 to 3-Day Delivery on Orders $149+ Details
$1,475.89 kit
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Features, Description, Q&A, Specs & Installation
Rear Axle Gear Kit. The USA Standard Gear 8.6-Inch Posi Rear Axle Ring and Pinion Gear Kit with Installation Kit and 4.11 Gear Ratio is engineered to deliver precise gear ratio and limited slip functionality for improved traction. This comprehensive kit is designed for rear axle assemblies to upgrade or replace existing gears, enhancing vehicle performance and durability under various driving conditions.
Construction and Appearance. The kit includes high-quality ring and pinion gears made from durable materials, paired with a premium installation kit featuring Koyo bearings and seals. The gears are built for optimal strength with a standard finish, ensuring long-lasting performance within differential housings.
Installation. Installation requires moderate mechanical skill and is a direct replacement for compatible vehicles, requiring no drilling or modifications. The kit is designed to streamline the installation process, minimizing vehicle downtime.
Application. This kit fits 1999 to 2008 Sierra 1500 models equipped with an 8.6-inch rear differential and 10 bolt rear cover, featuring 30 spline axle shafts and 3.062-inch outside diameter carrier bearings. It is specifically tailored for use with limited slip posi traction carriers in these vehicles.
USA Standard Gear ZGK2018
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
No guide available for this part yet.
What's in the Box