Dorman 615-988 Spindle Nut - Rear
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Dorman

Dorman 615-988 Spindle Nut - Rear

Brand Dorman 615-988
Position Rear
Material Acero
Material Steel
Thickness 15.5
Point Quantity 0
Thread Type Fine
Thread Type Fino
Slotted Type No
Slotted Type Non
Thread Size 2 1/8-16
Thread Size 2,2 1/8-16
Bridge Nut Socket Needed Oui
Bridge Nut Socket Needed Yes
Contenidos del paquete 2 tuerca de husillo
De un solo uso. No
Diámetro de la rosca 2.125 in.
One Time Use No
One Time Use Non
Package Contents 2 spindle nuts
Thread Diameter 2.125 in
Thread Diameter 2.125 in.
Tuerca de puente de eje necesaria Sí
Fits Chevrolet and GMC · 63 vehicles

OE-style replacement. Matches the original fit and function for specified axle service.

Steel construction. Built from quality material for dependable hardware service.

Fine-thread design. Uses a 2 1/8-16 thread for the listed application.

Cross-references 22793592 for the same application. See all 1.

$54.84Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $54.84
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Spindle Nut options

Spindle Nut for Heavy-Duty Rear Axles

This Dorman spindle nut is built to match the original fit and function on specified heavy-duty trucks and SUVs. It is made from steel and uses a fine 2 1/8-16 thread for secure axle service.

Fits 2011-2021 Chevrolet Silverado 2500 HD, rear. Fits 2011-2021 Chevrolet Silverado 3500 HD, rear. Fits 2011-2021 GMC Sierra 2500 HD, rear. Fits 2011-2021 GMC Sierra 3500 HD, rear. Fits 2016-2019 Chevrolet Suburban 3500 HD, rear. Fits 2011-2018 Chevrolet Silverado 2500, rear. Fits 2015-2018 Chevrolet Silverado 3500, rear. Fits 2011-2013 Chevrolet Silverado 3500, rear.

Key Features

  • Steel construction for durable axle hardware service.
  • Fine 2 1/8-16 thread size for the specified application.
  • Bridge nut socket required for proper installation and removal.
  • Non-slotted design with no one-time-use requirement.
  • Direct-fit replacement for the original spindle nut.

Detailed Description

Dorman 615-988 is a spindle nut engineered to match the original part on selected Chevrolet and GMC rear axle applications. The steel construction and fine thread profile support secure retention during hub and axle service, while the direct-fit design helps maintain the intended factory fit. This part number, 615-988, is a practical replacement for service work on Silverado, Sierra, and Suburban heavy-duty platforms.

This part cross-references GM OE 22793592 for the same application.

What It Is Used For

  • Replacing a worn or damaged spindle nut during axle or hub service.
  • Restoring proper thread engagement on the rear axle assembly.
  • Addressing stripped, seized, or corroded original hardware.
  • Supporting reassembly after wheel hub or bearing service.

Installation Notes and Tips

Use the correct bridge nut socket for installation and removal. Verify thread size and axle application before service. Follow the vehicle service procedure for torque and retention requirements.

Quality Assurance

Dorman designs this spindle nut to match the fit and function of the original part on specified vehicles, using quality materials for reliable performance.

This part fits 63 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2021ChevroletSilverado 2500 HDRearPackaging Type: Box
2021ChevroletSilverado 3500 HDRearPackaging Type: Box
2021GMCSierra 2500 HDRearPackaging Type: Box
2021GMCSierra 3500 HDRearPackaging Type: Box
2020ChevroletSilverado 2500 HDRearPackaging Type: Box
2020ChevroletSilverado 3500 HDRearPackaging Type: Box
2020GMCSierra 2500 HDRearPackaging Type: Box
2020GMCSierra 3500 HDRearPackaging Type: Box
2019ChevroletSilverado 2500 HDRearPackaging Type: Box
2019ChevroletSilverado 3500 HDRearPackaging Type: Box
2019ChevroletSuburban 3500 HDRearPackaging Type: Box
2019GMCSierra 2500 HDRearPackaging Type: Box
2019GMCSierra 3500 HDRearPackaging Type: Box
2018ChevroletSilverado 2500RearPackaging Type: Box
2018ChevroletSilverado 2500 HDRearPackaging Type: Box
2018ChevroletSilverado 3500RearPackaging Type: Box
2018ChevroletSilverado 3500 HDRearPackaging Type: Box
2018ChevroletSuburban 3500 HDRearPackaging Type: Box
2018GMCSierra 2500 HDRearPackaging Type: Box
2018GMCSierra 3500 HDRearPackaging Type: Box
2017ChevroletSilverado 2500RearPackaging Type: Box
2017ChevroletSilverado 2500 HDRearPackaging Type: Box
2017ChevroletSilverado 3500RearPackaging Type: Box
2017ChevroletSilverado 3500 HDRearPackaging Type: Box
2017ChevroletSuburban 3500 HDRearPackaging Type: Box
2017GMCSierra 2500 HDRearPackaging Type: Box
2017GMCSierra 3500 HDRearPackaging Type: Box
2016ChevroletSilverado 2500RearPackaging Type: Box
2016ChevroletSilverado 2500 HDRearPackaging Type: Box
2016ChevroletSilverado 3500RearPackaging Type: Box
2016ChevroletSilverado 3500 HDRearPackaging Type: Box
2016ChevroletSuburban 3500 HDRearPackaging Type: Box
2016GMCSierra 2500 HDRearPackaging Type: Box
2016GMCSierra 3500 HDRearPackaging Type: Box
2015ChevroletSilverado 2500RearPackaging Type: Box
2015ChevroletSilverado 2500 HDRearPackaging Type: Box
2015ChevroletSilverado 3500RearPackaging Type: Box
2015ChevroletSilverado 3500 HDRearPackaging Type: Box
2015GMCSierra 2500 HDRearPackaging Type: Box
2015GMCSierra 3500 HDRearPackaging Type: Box
2014ChevroletSilverado 2500RearPackaging Type: Box
2014ChevroletSilverado 2500 HDRearPackaging Type: Box
2014ChevroletSilverado 3500 HDRearPackaging Type: Box
2014GMCSierra 2500 HDRearPackaging Type: Box
2014GMCSierra 3500 HDRearPackaging Type: Box
2013ChevroletSilverado 2500RearPackaging Type: Box
2013ChevroletSilverado 2500 HDRearPackaging Type: Box
2013ChevroletSilverado 3500RearPackaging Type: Box
2013ChevroletSilverado 3500 HDRearPackaging Type: Box
2013GMCSierra 2500 HDRearPackaging Type: Box
2013GMCSierra 3500 HDRearPackaging Type: Box
2012ChevroletSilverado 2500RearPackaging Type: Box
2012ChevroletSilverado 2500 HDRearPackaging Type: Box
2012ChevroletSilverado 3500RearPackaging Type: Box
2012ChevroletSilverado 3500 HDRearPackaging Type: Box
2012GMCSierra 2500 HDRearPackaging Type: Box
2012GMCSierra 3500 HDRearPackaging Type: Box
2011ChevroletSilverado 2500RearPackaging Type: Box
2011ChevroletSilverado 2500 HDRearPackaging Type: Box
2011ChevroletSilverado 3500RearPackaging Type: Box
2011ChevroletSilverado 3500 HDRearPackaging Type: Box
2011GMCSierra 2500 HDRearPackaging Type: Box
2011GMCSierra 3500 HDRearPackaging Type: Box
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
22793592