This Cast Backing Assembly (Spider) is designed for Dexter 10,000 lb thru 15,000 lb capacity electric brakes.
- Fits 12-1/4" x 3-3/8" 10k GD Dexter Brakes Part Number: 23-450 or 23-451
- Fits 12-1/4" x 4" 10k HD Dexter Brakes Part Number: 23-438 or 23-439
- Fits 12-1/4" x 5" 12k Dexter Brakes Part Number: 23-442 or 23-443
- Fits 12-1/4" x 5" 15k Dexter Brakes Part Number: 23-446 or 23-447
- Use with Right or Left Hand Electric Brakes
- Has 7 bolt pattern for attaching to the axle brake flange