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Find Ring & Pinion Gears for your Sierra 1500

EXCEL from Richmond 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 3.73 Gear Ratio (99-18 Sierra 1500)Find parts that fit my vehicle

Item S506327
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$258.49 kit

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Rear Ring and Pinion Set
      • For Street and High-Performance Applications
      • 3.73 Ratio
      • 8.5 in. & 8.625 in. Ring Gear Diameter
      • Made of Heat-Treated 8620 Steel
      • Recommend Professional Installation
      • Includes 1 Year/50,000 Mile Warranty
      • Fits All 1999-2018 GMC Sierra 1500 Models

      Description

      Strong Performer. Looking to replace your Sierra 1500's worn stock rear ring and pinion duo? If so, an EXCEL from Richmond 8.5 in. &  8.6 in. Rear Ring Gear and Pinion Kit - 3.73 Gears may be the right choice for your Sierra 1500. The set of ring gear and pinion gear is designed to deliver rear wheel torque and boost acceleration. Get a better performance with this 3.73 gear ratio set that caters to 8.5 in. and 8.6 in. rear axles.

      3.73 Gear Ratio. Whether your truck is a daily driver or used in high-performance scenarios, this EXCEL Rear Gear and Pinion Set has the capacity to keep it at an optimal performance level. An increased acceleration rate can result from this upgrade too, without being at the cost of fuel economy.

      Heat-Treated Steel. Richmond Gear makes this 10-bolt Rear Ring and Pinion Set from 8620 steel and heat-treats it for more strength and reliability. The ring gear diameter of 8.5 in. or 8.625 in. corresponds to your truck's rear axle size.

      Professional Eye. Tackling a rear ring and pinion installation is amongst the harder auto tasks. With a series of complex steps, this installation is best left to a pro mechanic or shop. The replacement process takes approximately 4 hours.

      1 Year or 50,000 Miles. Richmond Gear's EXCEL 8.5 in. & 8.625 in. Ring and Pinion Duo comes with a 1 year or 50,000-mile warranty (whichever occurs first). This manufacturer's warranty, which protects against defects in material and workmanship, is best read in full.

      Application. The EXCEL from Richmond 8.5 in. &  8.6 in. Rear Ring Gear and Pinion Kit - 3.73 Gears is specifically made to fit 1999-2018 GMC Sierra 1500s with 10-bolt 8.5 and 8.6 rear axles.

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      Fitment:

      EXCEL from Richmond GM85373

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

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Ring Gear
      • (1) Pinion Gear
      5.0

      Customer Reviews (1)

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      Reviews of EXCEL from Richmond Drivetrain products have an average rating of 4.5 out of 5

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          Word on the Trail

          As always it was a painless and fast experience. That's why I will always go to you rather than another place to get the things I need for my truck. A huge thanks once again.

          celestetom
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