GM Genuine Parts Differential Drive Pinion Gear Inner Bearing Assembly
OE
Pack of 1

GM Genuine Parts Differential Drive Pinion Gear Inner Bearing Assembly

GM Part #84446305

ACDelco Part #84446305

MSRP$58.86*

ACDelco GM Original Equipment Differential Pinion Bearings are tapered roller bearing elements that support and allow the pinion gear to rotate within the axle or final drive housing, and are GM-recommended replacements for your vehicle's original components.

  • Tapered roller bearing elements that support and allow the pinion gear to rotate within the axle or final drive housing
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE

Pack of 1

About this product

ACDelco GM Original Equipment Differential Pinion Bearings are tapered roller bearing elements that support and allow the pinion gear to rotate within the axle or final drive housing, and are GM-recommended replacements for your vehicle's original components. These original equipment differential pinion bearings have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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  • Tapered roller bearing elements that support and allow the pinion gear to rotate within the axle or final drive housing
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Thickness1.18 in / 30.01 mm
Race IncludedYes
Weight0.08lb
ClassificationOE
Inside Diameter1.88 in / 47.63 mm
Width11.6 in / 30.16 mm
Outside Diameter3.57 in / 90.72 mm
Race Inside Diameter3.61 in / 91.61 mm
Bearing TypeTapered Roller

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

  • Use recommended grease or differential fluid to keep the bearing properly lubricated
  • Change differential fluids at vehicle recommended maintenance intervals

Signs of wear for differential pinion bearings include but are not limited to:

  • Low fluid levels in differentials
  • Leaks at seals and bearing location
  • Clunking and grinding noise from differential

ModelBody StyleTrimYear(s)
Silverado 1500Crew Cab Pickup2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500Extended Cab Pickup2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Silverado 1500 LTDCrew Cab Pickup2022
Silverado 1500 LTDExtended Cab Pickup2022
Silverado 2500 HD2020, 2021, 2022, 2023, 2024, 2025, 2026

Frequently Asked Questions

Yes. Ring and pinion gears come in matched sets and should be replaced at the same time.

No. Do not use bearing grease on carrier or pinion bearings during installation, this may cause premature bearing failure. Use clean gear oil as a pre-lubricant to the bearings during installation.