Keep the rear differential's bearing running true with the Timken Differential Race 28919. This is the outer cup (raceway) that a tapered roller bearing rides against inside the rear differential, and it installs as a direct-fit replacement for a wide range of 1965-1981 Chevrolet and GMC full-size trucks — including the C30, K30, C35, C3500, K35 and K3500 and their earlier Pickup variants (see the Buyer's Guide tab for the full year-by-year list).
Rear differential race: serves as the fixed outer raceway the tapered roller bearing rotates against, locating the bearing and carrying its load.
Position: rear application.
Serviceable wear item: a race is replaced together with its matching bearing when the raceway is pitted, scored or worn.
Signs it may need replacing: differential whine, growl or roughness that changes with speed can be a sign the bearing and its race are worn — diagnose the cause before replacing.
Interchange: BR28919 · Manufacturer part number 28919
This part cross-references / interchanges with the following part numbers:
28919, BR28919
Frequently Asked Questions
What is a differential race?
It is the outer cup (raceway) that a tapered roller bearing rides against. It locates the bearing and provides the surface the rollers rotate on inside the differential.
Where does this part go?
It is a rear application, seating in the rear differential as the outer raceway for its tapered roller bearing.
Should I replace the bearing at the same time?
Yes. A race and its matching bearing wear as a set, so they are normally replaced together when the raceway is pitted, scored or worn.
What symptoms suggest the race is worn?
Differential whine, growl or roughness that changes with vehicle speed can indicate a worn bearing and race. Diagnose the cause before replacing, since noise can have other sources.
Does this fit my truck?
It is a direct-fit replacement for the listed 1965-1981 Chevrolet and GMC C30, K30, C35, C3500, K35 and K3500 trucks. Check the Buyer's Guide tab to confirm your exact year and model.
Tapered Roller Bearing CupTimken Is The Recognized Global Leader In Tapered Roller Bearings.Engineered To Deliver Higher Speeds, Heavier Loads And Longer LifeWith Capacity To Manage Both Radial And...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
