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Yukon Gear & Axle SL GM8.5-28 Spartan Locker for GM 8.5" with 28 Spline

(GMC Yukon XL 1500 2005-06, G2500 1979-95, Yukon 1992-2011, Sonoma 1991-2004, K1500 1979-86, 1988-98, C1500 1979-86, 1988-99 + 133 more models)

Part of: Yukon Gear & Axle SL Spartan Locker for GM Spline Differential Spool

Other options in this family: Yukon Gear & Axle SL M20-29 Yukon Gear & Axle SL M35-1.6-27 Yukon Gear & Axle SL GM12-30 Yukon Gear & Axle SL GM8.5-30

Manufacturer

Picture for manufacturer Yukon Gear & Axle

Part Number

SL GM8.5-28
11 reviews
Sale Price

$503.16

Estimated ship date Tuesday, November 24

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Fitment guaranteed

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Product Details

The Yukon Gear & Axle Spartan Locker SL GM8.5-28 delivers reliable traction and performance for GM 8.5-inch rear differentials with 28 spline axles. This mechanical locking differential provides automatic traction by locking both wheels together, ensuring maximum power transfer to the ground in demanding off-road and performance applications.

Key Features:

  • Direct replacement for factory spider gears in standard open differential case
  • Innovative spring and pin design eliminates thrust washers for simplified installation
  • Couplers and drivers constructed from high-strength 9310 steel
  • Includes heavy-duty cross pin shaft for complete installation
  • Automatic operation - engages and disengages based on wheel speed differential
  • No external controls or modifications required
  • One year manufacturer warranty against defects

The Spartan Locker provides a cost-effective alternative to more expensive selectable lockers while delivering superior traction compared to limited-slip differentials. Ideal for trucks, SUVs, and off-road vehicles that need enhanced traction without the complexity of air or electronic locking systems. Fits GM 8.5-inch 10-bolt rear axles with 28 spline axle shafts.

Products specifications

Fits

GMC Yukon XL 1500 2005-06, G2500 1979-95, Yukon 1992-2011, Sonoma 1991-2004, K1500 1979-86, 1988-98, C1500 1979-86, 1988-99, K2500 1979-86, 1988-91, 1994, Jimmy 1977-2005, Savana 2500 1996-2012, Savana 1500 1996-2012, C3500 1998 + 128 more models

Position

Rear

Prop 65

Yes

Axle Type

GM 8.5 in.

Position

Front Or Rear

Great

good experience

Quick and easy

First time buying at this wed site and was pretty simple

Very simple & fast.

Great Transaction. Best internet price. Great communication and willingness to make it right.

I was told about Autoplicity from a friend on a car forum site that I wouldn't be disappointed with the price, quality and shipping. <br><br>I ordered my part on 7-18-12 and received my item the very next day. That's about as fast as getting some parts from the local auto parts store when they have the parts stocked in an outlying warehouse.<br><br>I will certainly look to Autoplicity first when I need to order engine and other car parts for my 87' Monte Carlo SS<br><br><br><br>

Very simple and precise checkout process. Thanks!

Best price (bike rack), fast service, will buy again from Autoplicity.

VERY GOOD

Best price in town! Nobody can beat them! Even used eBay items were going for higher price. Will do business from them again!<br><br>Thanks<br>Order 7770

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