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Yukon Gear & Axle

Yukon YGLGM8.5-3-30 Grizzly Locker GM 8.5/8.6 30-Spline 2.73 Up Silverado/Sierra

Regular price
$651.95
Regular price
$1,073.00
Sale price
$651.95
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In Stock: 10

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Product Specification:

SKU:YUKYGLGM8.5-3-30

MPN: YGLGM8.5-3-30

UPC: 883584280354

Weight: 24.8 lb

Inventory: 10

Type: Differentials



Vehicle Fitment

  • All GM vehicles equipped with 8.5 in. or 8.6 in. rear differential, 30-spline axles, 2.73 ratio and up
  • 1999-2017 Chevrolet Silverado 1500
  • 2000-2017 Chevrolet Suburban 1500
  • 2000-2017 Chevrolet Tahoe
  • 2002-2013 Chevrolet Avalanche 1500
  • 1999-2013 GMC Sierra 1500
  • 1999-2013 GMC Sierra Denali
  • 1992-2013 GMC Yukon 1500
  • 2000-2013 GMC Yukon XL 1500
  • 2002-2006 Cadillac Escalade EXT
  • 1999-2013 Cadillac Escalade / Escalade ESV
  • 2005-2011 Hummer H3
  • 2005-2009 Saab 9-7x
  • 2003-2008 Isuzu Ascender
  • Also fits many 1970-1998 GM applications with GM 8.5 in. diff and 30-spline axles

Fitment Notes

  • GM 8.5 in. and 8.6 in. rear differential only -- 30-spline axles required
  • 2.73 and up gear ratio only -- does NOT fit vehicles with ratios below 2.73
  • Replaces entire carrier assembly
  • Requires HD bearings for GM 8.5 in. diff: LM102949 / LM102911 (not included)
  • 1.781 in. large bearing journal design
  • Compatible with GM 8.5 in. front and rear differential positions
  • Verify axle spline count and differential size before ordering
  • Professional installation required

Features

  • Automatic speed-sensing locker -- locks on wheel speed difference
  • 100% power to both tires under load -- disengages during turns
  • Forged case -- maximum strength
  • 8620 steel internals
  • Patented internal locking mechanism -- 350% stronger than back-cut designs
  • Withstands shock load and heavy abuse
  • Street, off-road, drag racing, and rock crawling applications
  • Assembled in the USA
  • 1-year limited warranty

Specifications

  • Part Number: YGLGM8.5-3-30
  • Series: Grizzly Locker
  • Differential: GM 8.5 in. / 8.6 in.
  • Axle Spline Count: 30
  • Gear Ratio: 2.73 and up
  • Bearing Journal: 1.781 in. (large)
  • Required Bearings: LM102949 / LM102911 (sold separately)
  • Case Material: Forged steel
  • Internal Material: 8620 steel
  • Weight: 29.0 lbs.
  • UPC: 883584280354
  • Quantity: 1

Included Components

  • 1x Yukon Grizzly Locker carrier assembly
  • Installation hardware

Product Description

The Yukon YGLGM8.5-3-30 is the Grizzly Locker for GM 8.5 in. and 8.6 in. differentials with 30-spline axles and 2.73+ gear ratios. A complete replacement for the factory carrier assembly, this automatic speed-sensing locker delivers 100% power to both tires when driving straight and disengages smoothly during turns. The forged case and 8620 steel internals handle extreme shock loads from rock crawling, drag racing, and serious off-road use. The patented internal locking design eliminates the common failure modes of traditional locker designs, with inner clutch teeth featuring a larger base radius for up to 350% greater strength versus back-cut designs.

Requires HD bearings LM102949 / LM102911 (sold separately). Professional installation required -- replaces the complete carrier assembly. Assembled in the USA. Backed by Yukon's 1-year limited warranty.

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