Overview
The Baer Brakes 4302542MG is a rear disc brake system in Monster Green for 1960–1988 Chevrolet and GMC C10 trucks with 2WD drive. A 6-piston caliper squeezes a 13-inch two-piece slotted, drilled and zinc-plated rotor, making it a rear brake upgrade for these trucks.
The OE large pattern 10/12 bolt C-clip housing ends are the mounting style, with 6-lug hubs on a 6×5.50 inch bolt pattern. The backing plate both mounts the caliper and carries a one-piece park brake shoe, so service and parking braking share one assembly. This color version also has a 13.0 inch front rotor diameter alongside the 13.0 inch rear rotor.
Key features
- Monster Green powder coated caliper finish
- 6P caliper with staggered pistons to even out pad wear
- Stainless pistons, abutments and noise-suppression clips
- Dual seals against dust, weather and pressure
- Two-piece rotor with billet aluminum hat, slotted, drilled and zinc plated
- Machined from forged or billet aluminum in the USA
- Stainless braided hoses and NAS stainless hardware included
- Pad type FMSI D0731
Care and maintenance
A powder coated caliper holds up well when it is kept clean and checked regularly. Road grime and brake dust can build up around the caliper body and in the mounting area, so rinse the assembly with water and mild soap after muddy or salty drives. Avoid solvent strippers and abrasive pads, which can dull or lift the finish over time.
Inspect the rotor surface, pad thickness and hose condition at each service interval. Deep scoring, heat cracks or uneven pad wear point to a problem that should be fixed before it spreads. Lubricate the caliper slide hardware with a suitable brake grease during pad changes, and keep grease off the friction surfaces.
When the truck is used on dusty trails, check the dust seals and the park brake shoe adjustment more often than on pavement. Grit that gets past a worn seal can accelerate wear on the pistons and rotor, so look for dirt packed around the piston area after a long trip.
- Rinse caliper and backing plate after mud or road salt exposure
- Check pads and rotor at each tire rotation
- Replace worn hoses rather than patching them
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302542MG |
| UPC | 90127879245 |
| Caliper | 6-piston, 6P, floating |
| Caliper color | Monster Green |
| Front rotor outside diameter | 13.0 inch |
| Rear rotor outside diameter | 13.0 inch |
| Rotor type | 2-piece, vented, slotted and drilled |
| Rotor thickness | 1.1 |
| Pad type | FMSI D0731 |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Minimum wheel diameter | 17.0 inch |
| Brake hose | Steel braided, DOT approved |
| Park brake | Included |
| Park brake cables | Not included |
| Drive | 2WD |
| Axle | Rear |
| Template | Q135H |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
Grouped by make, the fitment covers the Chevrolet C10 for 1960–1986 and C10 Suburban for 1967–1986, plus the Chevrolet R10 in 1987 and R10 Suburban in 1987–1988. For GMC it covers the 1000 in 1966, the 1000 Series in 1960–1965, the C15 Suburban in 1975–1978, the C15/C1500 and its Suburban in 1967–1974, the C1500 Suburban in 1979–1986, the R1500 Suburban in 1987–1988, and the Suburban in 1960–1966.
Model years outside those ranges and trucks with four-wheel drive are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Wheels must be at least 17 inch diameter, and the Q135H template should be checked against the chosen wheel before mounting. The park brake cables are not part of the kit, so confirm how the truck’s existing cables will connect. Work with the truck securely supported and bleed the lines once reassembled.
What’s included
The kit includes the 6P rear caliper system, the pre-assembled two-piece Monster Green rotor, the backing plate with park brake shoe, and stainless braided hoses with hardware.
Not included: Park brake cables.
