Overview
The Baer Brakes SS4 Brake System, part number 4302468CY in Comp Yellow, is a rear disc brake kit for 1960 to 1988 Chevrolet C10 and GMC C15-series 2WD trucks, including Suburban models, that use the original large pattern 10/12 bolt C-clip housing ends on a 5 by 5 inch bolt pattern. It pairs a four-piston S4 caliper with a 12 inch, one-piece slotted, drilled and zinc plated rotor.
The backing plate doubles as the caliper bracket and carries a modern one-piece park brake shoe assembly, which places the parking brake inside the rear assembly. Braided stainless hoses come with the system. Pad options fall in the DR1 or HB100 families, making it a practical match for owners upgrading rear disc brakes on these trucks.
Key features
- Comp Yellow powder coated finish on the two-piece S4 caliper.
- Forged or billet aluminum body, CNC machined from U.S. sourced stock.
- Aluminum pistons with hard anodized treatment, stainless steel abutments and noise suppression clips.
- Dual seals for dust, weather and pressure protection.
- Vented 12 inch rotor, one-piece, slotted, drilled and zinc plated.
- Park brake shoe assembly integrated into the backing plate.
- DOT approved steel braided hoses supplied with the system.
Early checks after installation
The first few drives after a rear brake job show whether everything has settled. New pads need a short bedding period before they reach full bite, so avoid hard stops during that time. Pedal height and firmness should stay steady; a pedal that sinks slowly can point to a leak at a fitting or a bleed issue that was missed.
Heat and noise are the other early signals. A faint smell or a squeal that fades is often normal on new pads, but a grinding noise or a pull to one side deserves attention right away. Checking the lug nut torque after the first short drive is a sensible habit on any wheel-off job.
- Bed in pads with progressive stops
- Watch pedal height over the first drives
- Re-check lug nut torque after a short drive
- Stop and inspect for any pull or grinding
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302468CY |
| UPC | 90127878774 |
| Caliper | S4, four-piston, floating, two-piece |
| Caliper color | Comp Yellow |
| Rotor | 12.0 inch outside diameter, vented, one-piece, slotted, drilled, zinc plated |
| Rotor thickness | 1.02 |
| Minimum wheel diameter | 16.0 inch |
| Wheel bolt pattern | 5 x 5.00 inch, 5 lug |
| Axle | Rear |
| Drive | 2WD |
| Park brake | Included; park brake cables not included |
| Brake hose | Steel braided, DOT approved |
| Pad FMSI number | DR1-C |
| Template | S113E |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Kit |
Vehicle fitment
Manufacturer fitment data for this kit lists 1960 to 1986 Chevrolet C10 and C10 Suburban models, 1987 Chevrolet R10 and R10 Suburban for 1987 to 1988, 1960 to 1966 GMC 1000 plus the 1960 to 1965 GMC 1000 Series, 1967 to 1974 GMC C15/C1500 and its Suburban version, 1975 to 1978 GMC C15 Suburban, 1979 to 1986 GMC C1500 Suburban, 1987 to 1988 GMC R1500 Suburban, and 1960 to 1966 GMC Suburban.
Four-wheel-drive trucks and years outside 1960 through 1988 do not appear on that list. Check your truck’s model year, body style and 2WD drive against these entries, since the C10 and C15 Suburban naming overlaps in places.
Installation notes
Compare the S113E template to your planned wheel before mounting, since wheel designs vary and fit cannot be guaranteed across every style. Plan on a wheel with at least a 16.0 inch minimum diameter.
What’s included
The Comp Yellow kit includes the four-piston S4 caliper, 12 inch rotor, backing plate with park brake shoe assembly, and braided stainless hoses.
Not included: Park brake cables.
