FREE 1 to 3-Day Delivery on Orders $149+ Details

Talk to a Sierra 1500 Sales Tech
1-888-706-1096
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$12K Summer Sweepstakes! Enter Now >

Find Ring & Pinion Gears for your Sierra 1500

USA Standard Gear 8.50-Inch Axle Ring and Pinion Gear Kit; 4.30 Gear Ratio (99-17 Sierra 1500)Find parts that fit my vehicle

Item S551030
Product Image
$0.00
Want $10? Write one of the first 5 reviews 4.9 USA Standard Gear Drivetrain product ratings
Our Price

$524.89 kit

Ship to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Loading Indicator

      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • USA Standard Gear Axle Ring and Pinion Gear Kit
      • Comes in Kits
      • Gear Ratio of 4.30
      • Matte Black Finish
      • Uses 30-Spline Pinions and 10 Ring Gear Bolts
      • Compatible with GM 8.5- and 8.6-Inch Models
      • Direct Replacement
      • OC Compatible and Comparable
      • Fits 1999-2017 GMC Sierra 1500 Models

      Description

      Performance-Oriented Drivetrain Upgrade. The USA Standard Gear Axle Ring and Pinion Gear Kit is built to deliver improved torque distribution and drivetrain performance for 1999-2017 GMC Sierra 1500 models. Featuring a 4.30 gear ratio, this kit offers enhanced traction response ideal for towing, off-road use, or aggressive driving applications.

      Construction and Appearance. This kit features a matte black finish for corrosion resistance and includes a 30-spline pinion gear and 10-bolt ring gear compatible with GM 8.5- and 8.6-inch differential models. Its precision-machined components ensure smooth meshing and reliable power transfer under high-load conditions.

      Installation. Designed as a direct replacement, the kit allows for an adaptable installation using standard differential tools and procedures. It aligns with OE specifications for a clean fit and consistent performance without custom modifications.

      Application. The USA Standard Gear Axle Ring and Pinion Gear Kit fits 1999-2017 GMC Sierra 1500 models. It enhances the vehicle’s drivetrain responsiveness and torque delivery, making it a strong upgrade for performance-focused or utility-driven builds.

      USA Standard Gear ZG GM8.5-430

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 3 Hours

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Pinion Gear
      • (1) Axle Ring
      4.9

      Reviews of USA Standard Gear Drivetrain Products (9)

      Brand Image

      Reviews of USA Standard Gear Drivetrain products have an average rating of 4.9 out of 5

      Questions & Answers

      No questions about this product yet. Ask the First Question