Overview
The Baer Brakes 4302268CY is a Pro Plus 13.0 inch rear brake system in Comp Yellow, sold as a kit for rear ends with a GM small pattern 10/12 bolt bearing-on-axle flange and a 5×4.75/5×5.00 bolt pattern. It pairs a six-piston fixed caliper with a 13 inch two-piece rotor that is slotted, drilled and zinc plated.
Baer designed the backing plate to carry the caliper mount and hold a one-piece park brake shoe assembly, so the parking brake is part of the rear unit. The rotors arrive pre-assembled with NAS high grade stainless hardware, the caliper has dust and weather seals, and the pads are the D0731 type. This 13 inch Pro Plus is intended for wheels 17 inch or larger, and Baer cannot guarantee fit with every wheel style.
Key features
- Six-piston caliper with staggered pistons to minimize uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual seals for dust, weather and pressure
- Two-piece slotted, drilled, zinc-plated rotor with a billet aluminum hat
- CNC machined from US sourced forged or billet aluminum
- Powder coated finish
- Braided brake hoses and hardware included
Before you buy
A rear disc brake upgrade changes more than the rotor and pads. The caliper, hub, bearing and parking brake all work as one unit, so the wheel, axle flange and bolt pattern should be confirmed together before any parts are ordered. Wheel offset and clearance matter as much as diameter, because a larger rotor can bring the caliper closer to the spokes or barrel of the wheel.
Because this kit carries its own park brake shoe assembly inside the backing plate, the parking brake becomes part of the rear unit rather than a separate job. Shoes and adjusters wear over time, so check the parking brake after installation and periodically thereafter. Anyone replacing rear pads should also look at the rotor surface and the stainless hardware for heat damage or looseness.
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302268CY |
| UPC | 90127951859 |
| Sold as | Kit |
| Caliper | 6-piston (6P), fixed |
| Caliper color | Comp Yellow |
| Rotor outside diameter | 13.0 inch |
| Rotor type | 2-piece, vented, slotted, drilled, zinc plated |
| Rotor thickness | 1.1 |
| Pad FMSI number | D0731 |
| Axle | Rear |
| Axle flange | GM small pattern 10/12 bolt |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 17.0 inch |
| Park brake | Included |
| Park brake cables | No |
| Brake hose DOT approved | Yes |
| Grade | Performance |
| Template | Q110H |
| Country of origin | USA |
Vehicle fitment
The kit is built for GM small pattern 10/12 bolt bearing-on-axle rear ends, so match the axle flange and wheel bolt pattern on your vehicle to the specifications above.
Installation notes
Because the rotors arrive pre-assembled, the main fitting step is checking the wheel. Compare the wheel with the Q110H template before mounting, since Baer does not guarantee fit across every wheel style. Parking brake work on a rear axle should be done by a technician comfortable with disc brake hardware.
What’s included
Included are the six-piston Comp Yellow caliper, the 13.0 inch two-piece rotors with stainless hardware, the backing plate with its park brake shoe assembly, and braided hoses with hardware.
Not included: park brake cables.















