Overview
This Baer Brakes S4 front disc brake system, part number 4301438GB, comes finished in Grabber Blue. It targets GM G-Body cars, S10 and S15 2WD pickups, and the Blazer and Jimmy versions of those trucks.
Compact and built for 15 inch wheels, the 11 inch S4 Plus carries a four-piston caliper over a two-piece slotted rotor. Billet hubs are assembled with bearings packed in Redline synthetic grease and arrive on stock height spindles, and the rotors include NAS stainless hardware.
Key features
- Four-piston S4 caliper built in Phoenix, Az
- Grabber Blue powder coat over forged or billet aluminum
- Hard anodized pistons with stainless steel abutments
- Noise suppression clips
- Two seal types: dust/weather and pressure
- Two-piece slotted, drilled, zinc plated rotor
- Billet hubs with premium bearings and dust caps
- Stock height spindles and stainless braided hoses included
Choosing pads for daily driving
Pad compound affects braking feel, dust and noise more than stopping power alone. Street driving favors quieter compounds that warm up quickly, while frequent hard stops or towing call for a pad rated for higher heat. Match the pad to how the vehicle is used rather than choosing by appearance.
Bedding in new pads gradually transfers an even layer of friction material onto the rotor. Make several moderate stops from moderate speed, then let the brakes cool before heavy use. Skipping this step can cause vibration or uneven stopping, and it is worth repeating after any rotor resurfacing.
- Use the DR1 or HB100 pad type for this kit
- Replace rotors when they fall below minimum thickness
- Keep grease away from the friction surface
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301438GB |
| UPC | 90127920374 |
| Caliper | S4, 4-piston fixed |
| Caliper color | Grabber Blue |
| Rotor type | 2-piece slotted, drilled, zinc plated |
| Rotor construction | Vented |
| Rotor outside diameter | 11.0 inch |
| Rotor thickness | 1.02 |
| Brake pad type | DR1 or HB100 (FMSI DR1) |
| Brake hose | Steel braided, DOT approved |
| Axle | Front |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75 |
| Wheel stud size | M12-1.50 x 51.5mm |
| Minimum wheel diameter | 15.0 inch |
| Spindles included | Yes, stock height |
| Template | S125A |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
It fits Pontiac Grand Prix and Oldsmobile Cutlass Supreme models from 1978 through 1988, Oldsmobile Cutlass from 1978–1981 and 1985–1988, and Buick Regal and Chevrolet Monte Carlo from 1978 through 1988. Chevrolet El Camino runs through 1987, Chevrolet Malibu through 1983, Chevrolet S10 from 1982 to 2003, Chevrolet S10 Blazer from 1983 to 1994, GMC S15 from 1982 to 1990, and GMC S15 Jimmy from 1983 to 1991.
Years outside these ranges are not covered, such as a 1984 Chevrolet Malibu or a 1982 GMC S15 Jimmy. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Spindles arrive on stock height, so fitting the kit does not require a spindle change. Confirm wheel room with the S125A template, because Baer cannot guarantee fit with every wheel style. Brake work needs careful torque and bleeding, and a qualified shop should road test the vehicle before regular use.
What’s included
The package has the S4 caliper system, 11 inch 2-piece rotors with pre-assembled stainless hardware, billet hubs with bearings and dust caps, stock height spindles, mounting brackets, stainless braided hoses and hardware.
