Overview
The Baer Brakes 4302249CY is a Pro Plus rear brake system kit for rear ends with a GM small pattern 10/12 bolt C-clip axle flange and a 5×4.75/5×5.00 wheel bolt pattern. It combines a 6-piston 6P caliper with a 14 inch two-piece slotted, drilled, zinc plated rotor finished in Comp Yellow.
Baer builds the kit around a backing plate that serves as the caliper mount and houses a one-piece park brake shoe assembly, so the parking brake is part of the rear system. The rotors come pre-assembled with stainless hardware, and stainless braided hoses are included. The 14 inch Pro Plus is suited to wheels 18 inch or larger, so wheel size is the first thing to check on any build using this kit.
Key features
- 6-piston 6P caliper with stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- CNC machined components from US sourced forged or billet aluminum, with a powder coated finish
- Two-piece slotted, drilled, zinc plated rotor with a billet aluminum hat
- One-piece park brake shoe assembly integrated into the backing plate
- Steel braided hoses, DOT approved
- Disc brake pads use FMSI number D0731
Choosing a rear kit setup
A rear disc kit for a GM small pattern 10/12 bolt C-clip axle is mostly a matter of fit before performance. Measure your axle flange, bolt pattern and wheel clearance first, then compare the rotor diameter with the wheel you plan to run. A larger rotor needs more room behind the spokes, so the template check matters more than the caliper choice.
The park brake deserves a closer look. Because the shoe assembly sits in the backing plate, the parking brake is replaced along with the service brakes. Existing park brake cables often wear at the same time as the old shoes, so inspect them before assembly.
- Check wheel clearance against the caliper before mounting
- Inspect park brake cables for stretch, rust and binding
- Replace worn wheel studs or lug nuts if they are damaged
- Use fresh brake fluid whenever the hydraulic system is opened
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302249CY |
| UPC | 90127953068 |
| Sold as | Kit |
| Caliper | 6P, 6-piston, floating |
| Caliper color | Comp Yellow |
| Rotor outside diameter | 14.0 inch |
| Rotor type | 2-piece, vented |
| Rotor surface | Slotted, drilled and zinc plated |
| Rotor hat | Billet aluminum |
| Rotor thickness | 1.15 |
| Min wheel diameter | 18.0 inch |
| Axle flange | GM 10/12 bolt C-clip, small car pattern |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Hose material | Steel braided, DOT approved |
| Pad FMSI number | D0731 |
| Template | Q110P |
| Grade type | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
The manufacturer has not listed specific vehicles for this kit, so fitment is defined by the axle: a GM small pattern 10/12 bolt C-clip rear end with a 5×4.75/5×5.00 bolt pattern and 5 lug wheels.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors arrive pre-assembled with stainless hardware, and the park brake shoe assembly is part of the backing plate, so the parking brake installs as part of the rear kit. Baer cannot guarantee fit with every wheel style, so compare the Q110P template with your chosen wheel before mounting. Brake components should be installed by someone experienced with disc and park brake assemblies.
What’s included
Included: the 6P caliper system, two-piece rotors with billet aluminum hats and pre-assembled stainless hardware, the park brake shoe assembly, and stainless braided hoses with hardware.
Not included: Park brake cables.
