Overview
Grabber Blue is the finish on Baer’s SS4 rear brake kit, part number 4302468GB, a four-piston rear disc setup for Chevrolet and GMC C10 trucks built from 1960 through 1987 in 2WD form. The kit is designed around large pattern 10/12 bolt C-clip housing ends and 5 lug, 5×5 inch wheels.
The S4 caliper is mounted to a 12 inch one-piece slotted, drilled, zinc plated rotor. Baer’s backing plate carries the caliper and also houses a modern one-piece park brake shoe assembly, which means the parking brake is part of the same assembly. Pads are the DR1 or HB100 type, and the caliper wears a powder coated Grabber Blue finish.
Key features
- Two-piece S4 caliper with four pistons, manufactured in Phoenix, AZ
- Aluminum body CNC machined from forged or billet stock, US sourced
- Hard anodized pistons paired with stainless steel abutments
- Noise suppression clips and dual dust, weather and pressure seals
- Vented, one-piece slotted, drilled, zinc plated rotor
- Braided brake hoses, DOT approved
- One-piece park brake shoe assembly
Parking brake considerations
The parking brake on this kit runs through a one-piece shoe assembly housed in the backing plate, which is a different arrangement from many older rear setups. Because the cables are sourced separately, the handbrake will only hold as well as the cable routing and adjustment allow. Taking time to route and adjust the cables cleanly is part of a complete rear brake job.
Parking brake performance is worth testing on a slope before regular use. If the truck rolls or the lever travels too far, the shoe adjustment or cable tension likely needs attention. Cables should be routed away from exhaust heat and moving suspension parts, and any worn guides or bushings should be replaced at the same time.
- Source cables that match the rear layout
- Route cables clear of heat and moving parts
- Test hold on a slope before driving normally
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302468GB |
| UPC | 90127878811 |
| Sold as | Kit |
| Caliper | S4, two-piece, four-piston |
| Caliper color | Grabber Blue |
| Caliper type | Floating |
| Caliper piston quantity | 4 |
| Rotor outside diameter | 12.0 in |
| Rotor construction | Vented, one-piece, slotted, drilled, zinc plated |
| Rotor thickness | 1.02 |
| Pad type | DR1 or HB100 (FMSI DR1-C) |
| Brake hose | Steel braided, DOT approved |
| Park brake | Shoe assembly included; park brake cables not included |
| Drive | 2WD |
| Axle | Rear |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 in |
| Minimum wheel diameter | 16.0 in |
| Fitment notes | w/OE large pattern 10/12 bolt C-clip housing ends |
| Template | S113E |
| Grade type | Performance |
| Country of origin | USA |
Vehicle fitment
Listed applications run from 1960 to 1986 Chevrolet C10 and C10 Suburban through 1987-1988 R10 and R1500 Suburban models, plus GMC 1000, C15, C15/C1500, C1500 Suburban and Suburban trucks in the same era.
Only 2WD trucks are covered, so four-wheel-drive versions do not fit this kit. Model years after 1988 and non-GM trucks are outside the list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Test the S113E template against your intended wheel, since wheel styles differ and fit cannot be guaranteed across all of them. The 12 inch rotor requires a wheel 16 inches in diameter or larger. Shops familiar with C10 rear axles are best suited to install this kit and bleed the brake lines.
What’s included
Kit contents are the S4 caliper, the 12.0 inch rotor, Baer’s backing plate with its park brake shoe assembly, and braided brake hoses.
Not included: park brake cables.
