Identify the vehicle. Retain the restrictions.

1997 GMC Sonoma bearing, hub & seal reference — page 3

Look up 89 BCA catalogue entries for 1997 GMC Sonoma. 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 89 reference entries for 1997 GMC Sonoma. 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

51–75 of 89

“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
NB206BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Output Shaft Bearing - Front [391] with 27 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 937c576b
NB206BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Output Shaft Bearing - Rear [391] with 27 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 2ed75c83
NBB5020BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Pilot Bearing - Rear - 4WD [386] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 2a296d85
NBB5020BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Pilot Bearing - Rear - 4WD [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 9dfa89a1
NBJ2416BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Output Shaft Pilot Bearing - Front - 4WD [386] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 4bd85c02
NBJ2416BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Pilot Bearing - Front - 4WD [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry cdd1317e
NS3173BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Input Shaft Seal [388] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed; Single Lip	2021 catalogue Page 290Entry 106be58d
NS3173BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Input Shaft Seal [387] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed; Single Lip	2021 catalogue Page 288Entry 2ef00b77
NS341022BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Oil Pump Housing Seal - 4WD [386] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 8489b55f
NS341022BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Oil Pump Housing Seal - 4WD [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry c304237d
NS4813VBCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Front [398] Viton Type; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry ce13bea5
NS5200BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal Kit - Rear [395] with 32 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 2ff29140
NS710046BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Front [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry d9f3f01f
NS710597BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Shift Shaft Seal [386] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 2b92647d
NS710597BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Shift Shaft Seal [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 99d79afc
NS710928BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Input Shaft Seal [389] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed; Dual Lip	2021 catalogue Page 288Entry 2831bcad
NS710928BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Input Shaft Seal [390] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed; Dual Lip	2021 catalogue Page 290Entry bc3e7421
NS9449BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Rear [395] with 32 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 2ed6e4ec
NS9449BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Rear [396] with 32 Splines; with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry 9c674f3b
NS9613SBCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Rear [404] with 27 Splines; with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed; Seal & Bushing Kit	2021 catalogue Page 288Entry 0f2fcbf3
NS9613SBCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Seal - Rear [403] with 27 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed; Seal & Bushing Kit	2021 catalogue Page 288Entry a4355d3e
NS99225BCA catalogue reference	Transfer Case	1995–2004Subject to the conditions in this row	Oil Pump Housing Repair Sleeve - 4WD [386] with New Process 233C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 290Entry 95b49aee
NS99225BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Oil Pump Housing Repair Sleeve - 4WD [385] with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry c950a66c
WE61445BCA catalogue reference	Transfer Case	1995–1997Subject to the conditions in this row	Output Shaft Bearing - Rear [395] with 32 Splines; with New Process 231C Transfer Case; with Part Time 4WD; 2 Speed	2021 catalogue Page 288Entry d10834de
NS3553BCA catalogue reference	Wheel-Front	1995–2004Subject to the conditions in this row	SealNo additional numbered footnote is attached to this source row.	2021 catalogue Page 296Entry 16644510

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.