Have a Webb Wheel number from a brake drum or trailer hub? Use it to identify a possible GBK replacement, then compare the dimensions that control fitment. Brake drums and hubs should never be selected from the brand number alone.
Common Webb numbers and GBK replacement options
| Webb Part Number | Component | GBK Option | What to Verify |
|---|---|---|---|
| 96864B | Lightweight steel-shell brake drum | GDSSD1657 | 16.5" x 7" brake size, 10-hole pattern, pilot, bolt circle, offset, GAWR, and application |
| 65546B | 15" x 4" brake drum | M328N923 | Brake size, 10-hole pattern, pilot, bolt circle, offset, flange, and drum weight |
| 2023 / 20231 | Trailer hub assembly | HLT20231-3T | 10 studs, 11.25" bolt circle, 16.5" x 7" outboard drum application, bearing cups, and seal |
| 2343 | Trailer hub assembly | HLT2343 | Axle application, bearing cups, studs, seal, ABS provisions, and mounting dimensions |
| 23231-3T | Lightweight trailer hub assembly | HUBL23231-3T | 10 studs, 11.25" bolt circle, outboard drum, bearing configuration, seal, and axle application |
What has to match on a brake drum
- Brake size: nominal braking diameter and shoe width
- Mounting: inboard or outboard drum design
- Bolt pattern: hole count, bolt circle, and hole diameter
- Pilot: pilot diameter and hub-piloted fit
- Geometry: offset, flange thickness, overall depth, and clearance
- Application: axle rating, material or weight class, and compatible hub
What has to match on a trailer hub
- Axle and spindle application
- Stud count, stud size, and bolt circle
- Inboard or outboard drum configuration
- Inner and outer bearing cups
- Wheel seal and lubrication system
- ABS tone-ring or sensor provisions when required
- Hub material, weight, and service application
A matching Webb number is a useful starting point, but verify the casting, dimensions, bearings, seal, studs, and drum configuration before installation.
Search the Webb cross-reference page, or browse GBK brake drums and hub assemblies.
Send GBK the Webb number, axle information, and product photos when the hub or drum configuration is unclear.
Webb Wheel and related marks belong to their respective owners. GBK is an independent aftermarket supplier and is not affiliated with, sponsored by, or endorsed by Webb Wheel. Part numbers are used for identification and cross-reference purposes only.
Have a Webb Wheel number from a brake drum or trailer hub? Use it to identify a possible GBK replacement, then compare the dimensions that control fitment. Brake drums and hubs should never be selected from the brand number alone.
Common Webb numbers and GBK replacement options
| Webb Part Number | Component | GBK Option | What to Verify |
|---|---|---|---|
| 96864B | Lightweight steel-shell brake drum | GDSSD1657 | 16.5" x 7" brake size, 10-hole pattern, pilot, bolt circle, offset, GAWR, and application |
| 65546B | 15" x 4" brake drum | M328N923 | Brake size, 10-hole pattern, pilot, bolt circle, offset, flange, and drum weight |
| 2023 / 20231 | Trailer hub assembly | HLT20231-3T | 10 studs, 11.25" bolt circle, 16.5" x 7" outboard drum application, bearing cups, and seal |
| 2343 | Trailer hub assembly | HLT2343 | Axle application, bearing cups, studs, seal, ABS provisions, and mounting dimensions |
| 23231-3T | Lightweight trailer hub assembly | HUBL23231-3T | 10 studs, 11.25" bolt circle, outboard drum, bearing configuration, seal, and axle application |
What has to match on a brake drum
- Brake size: nominal braking diameter and shoe width
- Mounting: inboard or outboard drum design
- Bolt pattern: hole count, bolt circle, and hole diameter
- Pilot: pilot diameter and hub-piloted fit
- Geometry: offset, flange thickness, overall depth, and clearance
- Application: axle rating, material or weight class, and compatible hub
What has to match on a trailer hub
- Axle and spindle application
- Stud count, stud size, and bolt circle
- Inboard or outboard drum configuration
- Inner and outer bearing cups
- Wheel seal and lubrication system
- ABS tone-ring or sensor provisions when required
- Hub material, weight, and service application
A matching Webb number is a useful starting point, but verify the casting, dimensions, bearings, seal, studs, and drum configuration before installation.
Search the Webb cross-reference page, or browse GBK brake drums and hub assemblies.
Send GBK the Webb number, axle information, and product photos when the hub or drum configuration is unclear.
Webb Wheel and related marks belong to their respective owners. GBK is an independent aftermarket supplier and is not affiliated with, sponsored by, or endorsed by Webb Wheel. Part numbers are used for identification and cross-reference purposes only.
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