Identify the vehicle. Retain the restrictions.

2003 Chevrolet Silverado 1500 Differential bearing reference

Look up 24 BCA catalogue entries for 2003 Chevrolet Silverado 1500 — Differential. Compare full part references, component roles and recorded restrictions; confirm current vehicle-specific requirements before use.

Source-backed catalogue lookup

Filter by vehicle and component

Vehicle make Vehicle model Model year Component / position

Selections apply immediately. Every result retains the original year range, component position and additional restrictions. The button also works without JavaScript.

What this lookup establishes—and what it does not

Source: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog. The loaded entries cover listed model years from 1995 through 2020. This is a historical catalogue reference, not a live VIN decoder or a guarantee for every trim, market or production date.

BCA is an NTN-owned product line. The numbers below remain BCA part references; they are not silently converted into NTN, SKF or another brand's part numbers. Confirm current OEM/service requirements before use.

Recorded application evidence

Which bearing or hub reference applies?

The catalogue contains 24 reference entries for 2003 Chevrolet Silverado 1500 in Differential. Select the year and component, then read the full condition and footnote fields. There is no single universal bearing number for every support in this vehicle.

All wheel positions Front wheel Rear wheel Engine Transmission Differential Clutch

Reference records

1–24 of 24

“Bearing”, “hub assembly”, “seal” and “repair sleeve” describe different components. The source description, rather than the catalogue title, determines the role of each number.

On a phone, each record is shown as a complete card with its restrictions. These records do not supply tightening torques or certify a replacement.

BCA part reference	Component / position	Source model years	Recorded conditions & restrictions	Source trace
NBBR52BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing Set - Front Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry bd8fec1e
NBBR52BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing Set - Rear Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry bbcc8b38
NBHM803110BCA catalogue reference	Differential	2002–2005Subject to the conditions in this row	Pinion Race - Rear Inner [683] with 9.75 (in) Ring Gear; Spicer 60	2021 catalogue Page 89Entry a89cc607
NBHM803146BCA catalogue reference	Differential	2002–2005Subject to the conditions in this row	Pinion Bearing - Rear Inner [683] with 9.75 (in) Ring Gear; Spicer 60	2021 catalogue Page 89Entry d7f3b807
NBHM804810BCA catalogue reference	Differential	2001–2016Subject to the conditions in this row	Pinion Race - Rear Inner [276] with 9.5 (in) Ring Gear; AAM	2021 catalogue Page 93Entry d1edb4c5
NBHM804846BCA catalogue reference	Differential	2001–2016Subject to the conditions in this row	Pinion Bearing - Rear Inner [276] with 9.5 (in) Ring Gear; AAM	2021 catalogue Page 93Entry 04757d6c
NBHM88510BCA catalogue reference	Differential	2002–2005Subject to the conditions in this row	Pinion Race - Rear Outer [683] with 9.75 (in) Ring Gear; Spicer 60	2021 catalogue Page 89Entry 53462de0
NBHM88542BCA catalogue reference	Differential	2002–2005Subject to the conditions in this row	Pinion Bearing - Rear Outer [683] with 9.75 (in) Ring Gear; Spicer 60	2021 catalogue Page 89Entry 70c7159f
NBHM88610BCA catalogue reference	Differential	2001–2003Subject to the conditions in this row	Pinion Race - Rear Outer [276] with 9.5 (in) Ring Gear; AAM	2021 catalogue Page 87Entry c56933ca
NBHM88649BCA catalogue reference	Differential	2001–2003Subject to the conditions in this row	Pinion Bearing - Rear Outer [276] with 9.5 (in) Ring Gear; AAM	2021 catalogue Page 87Entry 178dbf06
NBM802011BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Race - Front Inner [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 2fc367e8
NBM802011BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Race - Rear Inner [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 7a387f13
NBM802048BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing - Front Inner [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry e73716f5
NBM802048BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing - Rear Inner [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 6d893a8c
NBM88010BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Race - Front Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry cab5fd94
NBM88010BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Race - Rear Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 7a33ac26
NBM88048BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing - Front Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 1dff8685
NBM88048BCA catalogue reference	Differential	1999–2003Subject to the conditions in this row	Pinion Bearing - Rear Outer [287] with 8.25 (in) or 8.625 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 87Entry 54bc2030
NBNP099285BCA catalogue reference	Differential	2001–2013Subject to the conditions in this row	Pinion Race - Rear Inner [807] with 8.5 (in) or 8.6 (in) Ring Gear	2021 catalogue Page 92Entry 589bb83b
NBNP544520BCA catalogue reference	Differential	2001–2013Subject to the conditions in this row	Pinion Bearing - Rear Inner [807] with 8.5 (in) or 8.6 (in) Ring Gear	2021 catalogue Page 92Entry 4b5bbcd3
NS100712VBCA catalogue reference	Differential	2002–2005Subject to the conditions in this row	Pinion Seal - Rear [683] with 9.75 (in) Ring Gear; Spicer 60	2021 catalogue Page 89Entry 18dfe996
NS710506BCA catalogue reference	Differential	1999–2016Subject to the conditions in this row	Pinion Seal - Rear Outer [275] with 8.25 (in) Ring Gear; with Independent Front Suspension; AAM	2021 catalogue Page 92Entry efae54fd
NS710507BCA catalogue reference	Differential	2001–2013Subject to the conditions in this row	Pinion Seal - Rear Outer [294] with 9.5 (in) Ring Gear; AAM Axle	2021 catalogue Page 92Entry c0f5ff30
NS710536BCA catalogue reference	Differential	1999–2016Subject to the conditions in this row	Pinion Seal - Front Outer [225] with 8.625 (in) Ring Gear; AAM	2021 catalogue Page 92Entry cdb684ff

Checks before treating a reference as a replacement

Identify the complete vehicle

Match model year, engine, transmission, driven axle, body and production/VIN limits. A year and model name alone may leave several valid-looking entries.

Match the component role

Distinguish a loose bearing, complete hub, cup/cone, seal and repair sleeve. Check front/rear and inner/outer or left/right position exactly as recorded.

Preserve vehicle-specific interfaces

Confirm encoder/ABS arrangement, flange and spline interfaces, retention and the current service procedure. Do not transfer torque or installation force from an unrelated part.

How to use these results

Does a listed number guarantee fitment for my VIN?

No. These are source-listed catalogue references. Read every restriction and verify the current OEM and manufacturer information for the exact vehicle configuration. Missing VIN or production details remain unknown.

Can I replace a hub using a bearing with the same dimensions?

Not on dimensions alone. The complete assembly, encoder, retention, loading and installation interfaces must agree. The main bearing catalogue and cross-brand comparisons are separate dimensional references, not vehicle approvals.

Where are the axle-nut torque and installation instructions?

This application catalogue does not establish a universal torque or a complete installation sequence. Use the current vehicle-specific service procedure, including fastener reuse rules and staged tightening. Do not infer torque from the bearing number.

Does wheel noise prove that one of these parts has failed?

No. Bearing damage, tyres, brakes and driveline faults can produce overlapping symptoms. A reference lookup identifies candidates; it does not diagnose the cause or prove which side has failed.

Look up an exact source part number

Keep the BCA prefix and full marking. Similar numbers from other manufacturers are not automatically cross-references.

Continue the technical investigation

Wheel and hub identification checklist →Investigate wheel bearing noise →Engine and shell-bearing principles →Replacement evidence checklist →Query an actual bearing designation or dimension →

Source and interpretation limits

Factual reference basis: BCA 2021 Wheel Hub Assembly, Bearing and Seal Catalog, published by BCA Bearings, an NTN product line, with its linked numbered footnote reference. Each row retains its source page and restrictions. Vehicle names shared by one source entry remain associated with that entry; source counts are not quantities for sale.

BearingScope provides independently organized technical lookup and interpretation. It does not sell these parts, provide a repair service, certify current fitment, or claim that an absent result is unavailable from a manufacturer. Original public catalogue files and source fingerprints are retained in the site's verification records.