Overview
The Baer Brakes 4301587S is a Pro Plus front brake system in Silver for 1973 to 1987 Chevrolet and GMC C10, C15 and R10 pickups with 2WD 1/2 ton running gear. The Pro Plus uses a 2-piece 6-piston, 6P caliper on a 14 inch two-piece slotted, drilled, zinc-plated rotor.
Dse Forged Aluminum 2.5 Inch Drop Modular Spindles are sold separately and are not included. The kit supplies mounting brackets, steel braided hoses rated DOT approved, and rotor hardware pre-assembled with NAS high grade stainless fasteners. The pad type is D0731.
Key features
- 2-piece, 6-piston, 6P caliper manufactured in Phoenix, Az
- CNC machined from U.S. sourced forged or billet aluminum
- Powder coated finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- Two-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
Choosing the right setup
A Pro Plus style system is only as good as the parts around it. The caliper, rotor and pads work as a set, and the spindle sets the mounting points they depend on. Matching pad compound to how the truck is driven matters as much as matching the caliper size.
Silver-finished calipers show road grime and brake dust faster than darker finishes, so a periodic wipe-down keeps the caliper easy to inspect. Look at the hose sheathing and fittings during each service, since braided hoses can wear at the crimp points when they rub against suspension or frame parts.
- Verify spindle and wheel clearance before mounting calipers
- Bed in new pads gradually before heavy use
- Replace rotors when they reach minimum thickness
- Use the template to check clearance with the wheels you plan to run
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301587S |
| UPC | 90127853832 |
| Kit type | Kit |
| Axle | Front |
| Drive | 2WD |
| Caliper | 2-piece, 6-piston, 6P, fixed |
| Caliper color | Silver |
| Rotor type | 2-piece, vented, slotted, drilled, zinc-plated |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.15 inch |
| Minimum wheel diameter | 18.0 inch |
| Pad FMSI number | D0731 |
| Template | Q072P |
| Hose material | Steel braided |
| Brake hose DOT approved | Yes |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Spindle type | Dse Forged Alum Modular 2.5 Inch Drop Spindles (not included) |
| Country of origin | USA |
Vehicle fitment
Coverage includes 1973–1986 Chevrolet C10 and C10 Suburban models, 1987 Chevrolet R10 and 1987–1988 R10 Suburban models, 1975–1978 GMC C15 and C15 Suburban models, 1973–1974 GMC C15/C1500 and Suburban models, 1979–1986 GMC C1500 and Suburban models, and 1987 GMC R1500 and 1987–1988 R1500 Suburban models.
Trucks not named on that list fall outside this coverage, and four-wheel-drive models are excluded by the 2WD drive designation. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The modular spindles must be in place before the Pro Plus calipers and rotors are mounted, so verify that hardware first. This kit uses template Q072P for wheel checks, and Baer notes fit cannot be guaranteed for every wheel design, so measure before buying. Brakes are safety-critical; a qualified installer should complete the work.
What’s included
The kit includes the 6P Silver caliper, two-piece rotors with pre-assembled stainless hardware, mounting brackets, steel braided hoses and hardware.
Not included: the 2.5 inch drop modular spindles and wheels.
