Overview
The Baer Brakes 4302468R is a red SS4 rear disc brake system with a 4-piston caliper and a 12 inch slotted, drilled rotor, built for 5 lug trucks with a 5×5 inch bolt circle. It covers Chevrolet and GMC C10, R10, 1000, C15 and Suburban trucks from 1960 through 1988, with 10/12 bolt C-clip housing ends.
The SS4 caliper uses a floating design, and its backing plate holds a one-piece park brake shoe assembly. The 12 inch rotor fits most wheels 16 inch or larger, so check your wheel size before the kit goes on.
Key features
- 2-piece, 4-piston S4 caliper in red
- CNC machined from forged or billet aluminum
- Hard anodized aluminum pistons with stainless steel abutments
- Dual seals for dust, weather and pressure
- One-piece slotted, drilled, zinc-plated vented rotor
- Stainless braided hoses, DOT approved
- Integrated park brake shoe assembly in the backing plate
Before you buy
Matching a rear disc kit to the truck starts with the lug count, bolt circle and housing ends. Five-lug trucks need the matching wheel pattern, and mixing patterns causes fit problems that no adapter fixes safely. Confirm the housing ends are the right C-clip type, then measure wheel room around the caliper before ordering.
Protect the caliper finish during mounting so scratches do not start corrosion. Park brake cables are not included, so existing cables must be inspected for stretch, corrosion and smooth movement before reuse. Replacing worn cables during the install can save a second trip under the truck.
- Confirm bolt circle and housing end type
- Inspect existing parking cables before reuse
- Use a fresh bleed when installing the stainless hoses
- Check wheel clearance around the rotor and caliper
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302468R |
| UPC | 844165050827 |
| Caliper | S4, 4-piston, floating |
| Caliper color | Red |
| Pad type | DR1 or HB100, FMSI DR1-C |
| Rotor outside diameter | 12.0 inch |
| Rotor type | 1-piece, vented |
| Rotor thickness | 1.02 |
| Surface type | Slotted, drilled and zinc plated |
| Min wheel diameter | 16.0 inch |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Hose material | Steel braided |
| Brake hose DOT approved | Yes |
| Includes park brake | Yes |
| Includes park brake cables | No |
| Grade type | Performance |
| Template | S113E |
| Country of origin | US |
| Sold as | Kit |
Vehicle fitment
The manufacturer fitment list covers 1960–1986 Chevrolet C10 and 1987–1988 Chevrolet R10 Suburban and related GMC 1000, C15 and C1500 Suburban models. Confirm your vehicle’s year, model and trim before ordering.
Non-Suburban GMC C1500 trucks from 1979 to 1986 are not on the list, and no entries appear after 1988. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Park brake cables are not included, so existing cables must be reused or sourced separately. Check that the housing ends are the 10/12 bolt C-clip type and that the bolt pattern is 5×5 inch before fitting the backing plate. Brake work on a rear axle is best left to someone experienced with disc conversions.
What’s included
The system includes the S4 caliper with four pistons, the 12 inch rotor, the backing plate with park brake shoe assembly, and stainless braided hoses.
Not included: park brake cables.
