National Differential Pinion Race HM803110
National Differential Pinion Race HM803110

Differential Pinion Race for 1966-1971 Dodge Charger & More - National HM803110

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$30.99
MPN: HM803110
Item Package Quantity: 1
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National Differential Pinion Race P/N:HM803110
National Differential Pinion Race P/N:HM803110
$30.99

Give your differential's pinion bearing a fresh surface to run on with the National Differential Pinion Race HM803110. It fits many vehicles, among them the 2004-2006 Dodge Ram 1500, 2002-2005 Chevrolet Silverado 1500 and 2005-2010 Jeep Grand Cherokee, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list.

  • Part type: differential pinion race, the outer ring that the pinion bearing's rollers ride against.
  • Catalog position: front inner, rear outer and rear inner.
  • Quantity per application: one on the 2004-2006 Dodge Ram 1500, 2002-2005 Chevrolet Silverado 1500 and 2005-2010 Jeep Grand Cherokee listings.
  • Brand: National, manufacturer part number HM803110.

Inside the differential, the pinion bearings support the pinion gear shaft as it drives the ring gear. The race is pressed into a bore in the differential housing and gives the bearing rollers a smooth track to run on. If that surface becomes pitted, spalled or worn, the pinion can develop play and gear contact can change.

Signs a pinion race may need replacing include a whine or growl from the differential that changes on acceleration or coasting, and play at the pinion. Other driveline parts can cause the same noises, so diagnose the cause before you replace parts.

This listing is for the race only. Pinion depth and bearing preload must be set according to the vehicle service information, so installation by an experienced technician is recommended.

Frequently Asked Questions

What does a differential pinion race do?

It is the outer ring pressed into the differential housing that the pinion bearing's rollers run against. It helps support the pinion gear as it turns.

Which positions is National HM803110 cataloged for?

The catalog lists HM803110 for the front inner, rear outer and rear inner positions. The Buyer's Guide tab shows the listing for each vehicle.

Will it fit my 2004-2006 Dodge Ram 1500 or 2002-2005 Chevrolet Silverado 1500?

It is listed for the 2004-2006 Dodge Ram 1500 and the 2002-2005 Chevrolet Silverado 1500, with one used per application. The Buyer's Guide tab shows every listed vehicle.

What signs suggest a pinion race may need replacing?

A whine or growl from the differential that changes on acceleration or coasting, or play at the pinion, can come from worn pinion bearings or races. Diagnose the cause before you replace parts.

Is a pinion race difficult to install?

The race is pressed into its bore, and pinion depth and preload must be set according to the vehicle service information. Installation by an experienced technician is recommended.

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