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Yukon Gear & Axle

Yukon PK GM8.6-A Pinion Install Kit for 1999-2008 GM 8.6 in. Rear Differential

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$101.95
Regular price
$151.00
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$101.95
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In Stock: 2

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Product Specification:

SKU:YUKPK GM8.6-A

MPN: PK GM8.6-A

UPC: 883584130734

Weight: 3.4 lb

Inventory: 2

Type: Ring and Pinion Install Kits



Vehicle Fitment

  • 1999-2008 Chevrolet Silverado 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2008 Chevrolet Tahoe (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 2000-2008 Chevrolet Suburban 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2004 Chevrolet S10 (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2004-2008 Chevrolet Colorado (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2003-2008 Chevrolet Express 1500 (All Trims, GM AAM 8.6 in. Rear Axle, RWD)
  • 2002-2008 Chevrolet Trailblazer (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2002-2006 Chevrolet Avalanche 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 4WD)
  • 2007-2008 Chevrolet Avalanche (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 2003-2006 Chevrolet SSR (All Trims, GM AAM 8.6 in. Rear Axle, RWD)
  • 1999 Chevrolet C1500 / K1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2000 Chevrolet C2500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD)
  • 1999-2008 GMC Sierra 1500 (All Trims incl. Denali, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2008 GMC Yukon 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 2000-2008 GMC Yukon XL 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2008 GMC Savana 1500 (All Trims, GM AAM 8.6 in. Rear Axle, RWD)
  • 1999-2004 GMC Sonoma (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2004-2008 GMC Canyon (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2002-2008 GMC Envoy (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 1999-2000 GMC C2500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD)
  • 1999 GMC C1500 / K1500 / K1500 Suburban (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2000 GMC Suburban 1500 (All Trims, GM AAM 8.6 in. Rear Axle, 2WD/4WD)
  • 1999-2008 Cadillac Escalade (All Trims incl. ESV/EXT, GM AAM 8.6 in. Rear Axle, AWD/4WD)
  • 2004-2007 Buick Rainier (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2005-2008 Hummer H3 (All Trims, GM AAM 8.6 in. Rear Axle, 4WD)
  • 2003-2008 Isuzu Ascender (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)
  • 2005-2008 Saab 9-7x (All Trims, GM AAM 8.6 in. Rear Axle, AWD)
  • 1999-2005 GMC S15 Jimmy / Pickup (All Trims, GM AAM 8.6 in. Rear Axle, RWD/4WD)

Fitment Notes

  • Fits 1999-2008 GM AAM 8.6 in. rear differentials only - does not fit 2009 and newer applications (see PK GM8.6-B)
  • Designed for re-gear installations where carrier bearings and races are still serviceable and do not require replacement
  • For a full differential rebuild including carrier bearings, use the Yukon Master Overhaul Kit YK GM8.6-A instead
  • Confirm axle tag or differential housing code before ordering to verify GM AAM 8.6 in. application

Features

  • Purpose-built pinion installation kit for the 1999-2008 GM AAM 8.6 in. rear differential
  • Features Timken pinion bearings and races - the same brand trusted by OEM manufacturers for precision and durability
  • Includes a complete pinion shim kit for accurate preload and gear mesh setup
  • Pinion seal included to prevent fluid leakage after installation
  • Crush sleeve included for correct pinion preload setting during assembly
  • Marking compound and brush included to verify gear contact pattern before final assembly
  • Cost-effective solution for re-gear jobs where carrier bearings are in good condition and can be reused
  • Backed by Yukon Gear & Axle's 1-year warranty against manufacturer defects

Specifications

  • Differential Application: GM AAM 8.6 in. Rear
  • Applicable Years: 1999-2008
  • Bearing Brand: Timken
  • Kit Type: Pinion Install Kit (Carrier Bearings Not Included)
  • Position: Rear Differential
  • Remanufactured: No (New)

Included Components

  • 1x Pinion Inner Bearing & Race (Timken)
  • 1x Pinion Outer Bearing & Race (Timken)
  • 1x Pinion Seal
  • 1x Crush Sleeve
  • 1x Complete Pinion Shim Kit
  • 1x Marking Compound with Brush

Product Description

The Yukon Gear & Axle PK GM8.6-A is a pinion installation kit engineered specifically for the 1999-2008 GM AAM 8.6 in. rear differential. It provides all the essential components needed to complete a ring and pinion gear swap, including Timken pinion bearings and races, a pinion seal, crush sleeve, complete shim kit, and marking compound. This kit is the right choice when the carrier bearings are still in serviceable condition and do not need to be replaced - keeping your re-gear cost-effective without sacrificing quality.

Covering a wide range of GM trucks, SUVs, and vans from 1999 through 2008 - including the Silverado 1500, Sierra 1500, Tahoe, Yukon, Suburban, Escalade, Avalanche, and more - this kit is a staple for shops and builders working across the GM AAM 8.6 in. platform. If carrier bearings also need replacement, step up to the Yukon Bearing Install Kit (BK GM8.6) or Master Overhaul Kit (YK GM8.6-A). For 2009 and newer GM 8.6 in. applications, use PK GM8.6-B.

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