Overview
The Baer Brakes SS4 Brake System, part number 4302468FR in Fire Red, is a complete rear disc brake kit for 1960 to 1988 Chevrolet and GMC C10-series 2WD trucks and Suburbans with the original large pattern 10/12 bolt C-clip housing ends and a 5 by 5 inch bolt pattern. It centers on a 4-piston S4 caliper clamping a 12 inch, 1-piece slotted, drilled and zinc plated rotor.
Baer’s backing plate serves as the caliper mount and also houses a modern 1-piece park brake shoe assembly, so the parking brake function is built into the rear assembly. Stainless braided hoses are included. The system is designed around the popular DR1 or HB100 pad types and suits owners who want a matched rear disc package for these trucks.
Key features
- Four-piston S4 caliper with a two-piece design, manufactured in Phoenix, Arizona.
- CNC machined from U.S. sourced forged or billet aluminum, with a powder coated Fire Red finish.
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips.
- Dual seals that resist dust, weather and pressure.
- 12 inch, 1-piece slotted, drilled and zinc plated rotor.
- Integrated 1-piece park brake shoe assembly in the backing plate.
- Stainless steel braided, DOT approved brake hoses.
Rear brake maintenance
Rear pads and rotors wear more slowly than fronts on many trucks, but they still need regular checks. Pad thickness should be looked at during every wheel removal, and the rotor face should be inspected for deep grooves, blue discoloration or heat cracks. Uneven wear often points to a sticking caliper slide or a problem with the hose.
Good habits extend the life of a rear disc system. Bedding in new pads gradually helps the friction material transfer evenly to the rotor. Keeping the wheel bearings and hub nuts properly torqued prevents rotor runout, which can cause pulsing that feels like a warped rotor even when the rotor is sound.
- Measure pad thickness at each wheel removal
- Look for grooves, blue spots or heat cracks on the rotor
- Bed in new pads gradually
- Check caliper slide pins for free movement
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302468FR |
| UPC | 90127878798 |
| Caliper | S4, four-piston, floating, two-piece |
| Caliper color | Fire Red |
| Rotor | 12.0 inch outside diameter, vented, 1-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
It fits 1960 to 1986 Chevrolet C10 and 1967 to 1986 C10 Suburban models, 1987 Chevrolet R10 and 1987 to 1988 R10 Suburban, 1960 to 1966 GMC 1000 and 1960 to 1965 GMC 1000 Series, 1967 to 1974 GMC C15/C1500 and C15/C1500 Suburban, 1975 to 1978 GMC C15 Suburban, 1979 to 1986 GMC C1500 Suburban, 1987 to 1988 GMC R1500 Suburban, and 1960 to 1966 GMC Suburban.
Trucks outside these years and models, and four-wheel-drive versions, are not covered by the list. Confirm your truck’s year, model and drive setup against the entries above, since the Suburban and C10 names overlap.
Installation notes
Baer recommends comparing the S113E template with the wheel you plan to use before mounting, because wheel designs vary and fit cannot be guaranteed across every style. The kit requires a wheel at least 16.0 inch in diameter. Park brake cables are not included, so the rear parking brake will need its cables supplied separately. Have a qualified technician check brake pedal feel and parking brake operation after installation.
What’s included
The SS4 rear brake kit with the four-piston S4 caliper, 12 inch rotor, backing plate with park brake shoe assembly, and stainless braided hoses.
Not included: Park brake cables.
