Overview
The Baer Brakes Pro Plus 14 inch rear brake system, part number 4302504S, is a silver-caliper rear disc kit for 2WD Chevrolet and GMC C10 class trucks. Fitment is listed from 1960 to 1988, and the kit is built for the C-clip rear end with large pattern 10/12 bolt housing ends and a 6 lug, 6×5.50 inch bolt circle.
The 6-piston floating caliper clamps a 14.0 inch vented rotor, and the backing plate holds a one-piece park brake shoe assembly. Stainless braided hoses and hardware are included, and the rotors come pre-assembled with stainless hardware. Compare template Q135P with your wheel of choice, and plan for wheels 18.0 inch minimum.
Key features
- Two-piece slotted, drilled and zinc-plated rotor with billet aluminum hat
- 6-piston, 6P floating caliper with a powder coated finish
- Stainless steel pistons and noise suppression clips
- Dual seals for dust, weather and pressure
- Staggered pistons help reduce uneven pad wear
- Vented 14.0 inch rotor for trucks with a C-clip housing
- Park brake shoe assembly built into the backing plate
Older trucks, careful checks
Older C10 trucks often have brake hardware that has been repaired several times, so a new rear system works best when the surrounding parts are sound. The axle flange, bearing and seal should be checked for wear, and the C-clip retainers should be inspected for fatigue before the rotor goes on. Replacing a tired component during the job is usually less work than returning later to fix it.
Brake hoses and lines on an older truck can be stiff or brittle from age, and rubber hoses should be checked for cracks near the frame and axle. Parking brake cables, which are sourced separately, should be sized and routed carefully so the lever works smoothly. Drum-to-disc conversions also change the stance of the rear brake system, so verify that the rear track and clearance work with the tires in use.
- Inspect the axle flange, bearing and seal
- Check C-clip retainers for fatigue or wear
- Replace aged rubber brake hoses near the frame
- Route parking brake cables before final assembly
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302504S |
| UPC | 844165053385 |
| Caliper | 6P, six pistons, floating |
| Caliper color | Silver |
| Rotor outside diameter (rear) | 14.0 inch |
| Rotor thickness | 1.15 |
| Rotor type | 2-piece, slotted, drilled, zinc plated, vented |
| Minimum wheel diameter | 18.0 inch |
| Brake pad FMSI number | D0731 |
| Template | Q135P |
| Hose material | Steel braided |
| Hose DOT approved | Yes |
| Park brake included | Yes |
| Park brake cables included | No |
| Rear end application | C-clip (Bih) with large pattern 10/12 bolt housing ends |
| Axle | Rear |
| Drive | 2WD |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 in |
| Grade type | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
It fits 1960–1986 Chevrolet C10 and 1967–1986 C10 Suburban; 1987 Chevrolet R10 and 1987–1988 R10 Suburban; 1966 GMC 1000 and 1960–1965 GMC 1000 Series; 1975–1978 GMC C15 Suburban; 1967–1974 GMC C15/C1500 and Suburban; 1979–1986 GMC C1500 Suburban; 1987–1988 GMC R1500 Suburban; and 1960–1966 GMC Suburban.
It is for 2WD trucks only, so 4WD versions and model years outside the years above do not apply. Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
Because this kit is built for a C-clip housing, the rear end must match the large pattern 10/12 bolt housing ends named in the application. The park brake shoe assembly is included, but park brake cables are not, so confirm your cable routing before installing. A qualified brake technician should verify rotor and hub fit against your wheel.
What’s included
Silver six-piston floating caliper, 14.0 inch vented two-piece rotor with pre-assembled stainless hardware, backing plate with one-piece park brake shoe assembly, stainless braided hoses and hardware.
Not included: park brake cables.
