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Motive Gear 3977346 Differential Pinion Gear Thrust Washer

(Chevrolet Silverado 1500 HD 2001-03, 2005-06, Silverado 2500 HD 2001-18, K2500 1988-2000, Suburban 2014-18, Express 3500 1996-2002, 2010-14 + 66 more models)

Part of: Motive Gear Differential Pinion Gear Thrust Washers

Other options in this family: Motive Gear 3984818 Motive Gear D8BZ4230B Motive Gear 3880141 Motive Gear 559291 Motive Gear C8.25PW

Manufacturer

Picture for manufacturer Motive Gear

Part Number

3977346
11 reviews
Sale Price

$3.81

2 left at this price

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Usually delivered within 2 days

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Product Details

The Motive Gear 3977346 is a precision-engineered differential pinion gear thrust washer designed to maintain proper gear alignment and axial load management within the differential assembly. This thrust washer sits between the pinion gears and the differential case, absorbing the thrust forces generated during torque transfer and helping to control gear end-play for smooth, reliable operation.

Key Features:

  • Precision-machined to exacting tolerances for consistent gear spacing and end-play control
  • Manufactured from high-quality hardened steel to withstand the thermal and mechanical stresses of differential operation
  • Direct OEM cross-reference replacement, ensuring proper fitment and function
  • Engineered to Motive Gear's rigorous quality standards developed through years of racing and performance drivetrain development
  • Suitable for both street and off-road differential rebuild applications

The 3977346 thrust washer is an essential component in any differential overhaul or ring-and-pinion gear installation. Replacing worn or damaged thrust washers during a rebuild helps prevent premature gear wear, reduces differential noise, and ensures proper torque distribution across the axle. Motive Gear's drivetrain components are trusted by professional builders and racers worldwide.

Products specifications

Fits

Chevrolet Silverado 1500 HD 2001-03, 2005-06, Silverado 2500 HD 2001-18, K2500 1988-2000, Suburban 2014-18, Express 3500 1996-2002, 2010-14, Express 2500 1996-2002, 2010-14, C3500 1988-2000, Silverado 2500 1999-2009, 2011-12, 2014-18 + 63 more models

Prop 65

Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING: Cancer - www.p65warnings.ca.gov

Differential Case Design Type

GM 10.5

Position

Rear

Very straight forward and easy to navigate website

So far so good

Good but would like to have a link to the manufacture.

Autoplicity was great, I ordered my springs late Monday night and I received a shipment order confirmation number early Wednesday. So basically 1 business day and my order was out the door, pretty impressive. Can't wait 'till it gets here! Thanks Autoplicity!

Easy, easy, easy

Ordered a N-Fab bumper for my Titan. Shipped out quickly and let me know when to expect it in. Price was the best anywhere on the net! Will buy from again, thanks

Quick and easy

was quick and easy

Pricing is enticing

great

very E-Z to navigate this site.

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