Overview
The Baer Brakes 4302533S is a silver SS4 Plus rear brake system kit for 1988-1998 Chevrolet and GMC C1500 2WD trucks and 1992-1999 C1500 Suburban SUVs. It pairs a 4-piston S4 caliper with a 13-inch 2-piece slotted, drilled, zinc-plated rotor, and it is written for trucks that keep the original C-clip (Bih) rear end and 10-inch rear drums.
The backing plate does double duty: it carries the caliper and houses a modern 1-piece park brake shoe assembly. Rotors come pre-assembled with NAS high grade stainless hardware, and the kit adds stainless braided hoses, so the lines and fasteners are upgraded together.
Key features
- 4-piston S4 caliper with hard anodized aluminum pistons and stainless steel abutments
- Noise suppression clips fitted to the caliper
- Dual seals for dust, weather and pressure
- 13-inch 2-piece rotor, slotted, drilled and zinc plated, with a billet aluminum hat
- Caliper components CNC machined from US sourced forged or billet aluminum
- Powder coated silver finish
- Park brake shoe assembly integrated into the backing plate
- Steel braided hoses, DOT approved
- DR1-C pad type
Before you buy
Rear disc conversions on C1500 trucks change more than the stopping hardware. The rear end, drum size and parking brake all have to match the kit before parts go on the truck. Trucks with a C-clip axle need the axle flange and bearing condition checked, because the rotor hub bolts to what is already there. Look the axle over for wear before committing to the install.
Brake fluid and lines are often replaced at the same time as the calipers. Braided hoses resist swelling under pressure, so a firm pedal depends on clean, fully bled hydraulics. Pads should be checked after the first few stops, and park brake adjustment should be confirmed once the rear wheels are back on.
- Inspect the axle flange and wheel bearings
- Replace brake fluid during the bleed
- Confirm park brake adjustment after the first drive
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302533S |
| UPC | 844165055167 |
| Caliper | S4, 4-piston, floating |
| Caliper color | Silver |
| Rotor type | 2-piece, vented, slotted, drilled, zinc plated |
| Rotor outside diameter | 13.0 inch |
| Rotor thickness | 0.81 |
| Minimum wheel diameter | 17.0 inch |
| Pad type (FMSI) | DR1-C |
| Hose material | Steel braided, DOT approved |
| Park brake | Included; park brake cables not included |
| Drive | 2WD |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 |
| Template | S135H |
| Emission code | 6 |
| Grade type | Performance |
| Country of origin | USA |
Vehicle fitment
It fits the 1988-1998 Chevrolet C1500, the 1992-1999 Chevrolet C1500 Suburban, the 1995-1999 Chevrolet Tahoe, the 1988-1998 GMC C1500, the 1992-1999 GMC C1500 Suburban and the 1992-1999 GMC Yukon.
Only 2WD applications are listed, so 4WD trucks are not covered. The kit is also written for rear ends with the OE C-clip (Bih) and 10-inch rear drums, and other axle setups are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Rotors arrive pre-assembled with the stainless hardware already in place. The minimum wheel diameter is 17.0 inch, so check wheel size first. Clearance with every aftermarket wheel is not guaranteed, so compare the S135H template to the wheel you plan to use. Brake work is safety-critical: have a qualified technician bleed the hydraulics and check the park brake after installation.
What’s included
The kit includes the S4 caliper, the pre-assembled 13-inch rear rotor assemblies with stainless hardware, the rear backing plate with its 1-piece park brake shoe assembly, and stainless braided hoses with stainless hardware.
Not included: park brake cables.
