Overview
The Baer Brakes 4302344CY is a complete rear brake kit built around a 6-piston 6P caliper on a 13.0 inch, 2-piece slotted, drilled, zinc plated rotor, with a Comp Yellow caliper finish. It is designed for rear axles with a GM small pattern 10/12 bolt flange and flush mount bearing housing ends, using a 5×4.75/5×5.00 wheel bolt pattern with 5 lugs.
The backing plate serves as the caliper mount and houses a 1-piece park brake shoe assembly, so the parking brake shoe sits in the same plate. The caliper is CNC machined from US sourced forged or billet aluminum and manufactured in Phoenix, Az. Wheel fit cannot be guaranteed across every wheel style, so compare the Q110H template with your wheel before mounting.
Key features
- 6-piston 6P caliper with stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual dust, weather and pressure seals
- 2-piece slotted, drilled, zinc plated rotor with billet aluminum hat
- Rotors pre-assembled with NAS high grade stainless hardware
- Powder coated finish
- Stainless braided hoses included; uses the popular D0731 pad type
Choosing rear brake upgrades
A larger rear rotor and six-piston caliper change how the brake load is shared between the axles, so the front brakes and proportioning setup should be checked when a rear kit is fitted. Rear pads wear differently from front pads on many trucks, and the pad type should be matched to the caliper before the first stop.
The parking brake shoe in this kit works against the inside of the rotor hat, so it wears separately from the service brakes. Cables and adjusters are often replaced at the same time as the shoe, since a worn cable can keep the shoe from releasing fully.
- Check that the master cylinder can supply the larger caliper volume
- Replace park brake cables when the shoe is replaced
- Re-torque wheel lug nuts after the first few drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302344CY |
| UPC | 90127952528 |
| Format | Kit |
| Axle | Rear |
| Axle flange | GM small pattern 10/12 bolt with flush mount bearing |
| Caliper | 6P, 6 pistons, fixed |
| Caliper color | Comp Yellow |
| Rotor type | 2-piece |
| Rotor outside diameter | 13.0 inch |
| Rotor thickness | 1.1 |
| Rotor construction | Vented |
| Rotor surface | Slotted, drilled and zinc plated |
| Hub | Billet aluminum hat |
| Brake hose | Steel braided, DOT approved |
| Pad FMSI number | D0731 |
| Template | Q110H |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 17.0 inch |
| Park brake shoe | 1-piece, included |
| Park brake cables included | No |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
It fits rear axles with a GM small pattern 10/12 bolt flange and flush mount bearing housing ends, a 5×4.75/5×5.00 bolt pattern and a wheel of 17 inches or larger.
Confirm your vehicle’s year, model and trim before ordering. Compare the Q110H template with your wheel and check the axle specifications before ordering.
Installation notes
Park brake cables are not included, so they need to be sourced separately. Because Baer cannot guarantee wheel fit, compare the Q110H template against your wheel before mounting. Since this is a braking system, have it installed by someone experienced with rear brake and park brake work.
What’s included
The kit includes the 6P caliper, the 2-piece rotor pre-assembled with NAS high grade stainless hardware, the backing plate with its 1-piece park brake shoe assembly, and stainless braided hoses and hardware.
Not included: park brake cables.
