Overview
The Baer Brakes 4301588B is an Extreme Plus front brake kit with a Black caliper for 1973 to 1987 Chevrolet and GMC C10, C15 and R10 pickups in 2WD 1/2 ton form. The 1-piece Monoblock 6-piston, 6S caliper works with a 14 inch two-piece slotted, drilled, zinc-plated rotor.
Dse Forged Aluminum 2.5 Inch Drop Modular Spindles are not included and must be sourced separately. The calipers and rotors bolt to those spindles. The kit supplies mounting brackets, stainless braided hoses and rotor hardware pre-assembled with NAS high grade stainless fasteners.
Key features
- 1-piece Monoblock, 6-piston, 6S caliper manufactured in Phoenix, Az
- CNC machined from U.S. sourced 2618 aluminum forging
- 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
Before you buy
Front brake upgrades affect more than the stopping hardware. The caliper clamps the rotor, and the pads turn hydraulic pressure into friction, so the spindle, hub, wheel and tire all need to work together. Plan the whole front end at once rather than swapping one part at a time.
Wheel clearance deserves attention before the install. A larger rotor and caliper can reduce room behind the spokes, so check wheel backspacing and offset against the new setup. Heavier wheels and larger tires also add load to the bearings and hub, which makes periodic inspection more important.
- Check pad wear at every tire rotation
- Inspect braided hoses for chafing and bulges
- Re-torque rotor and caliper bolts after the first few drives
- Keep brake fluid fresh and free of moisture
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301588B |
| UPC | 90127853849 |
| Kit type | Kit |
| Axle | Front |
| Drive | 2WD |
| Caliper | 1-piece Monoblock, 6-piston, 6S, fixed |
| Caliper color | Black |
| Rotor type | 2-piece, vented, slotted, drilled, zinc-plated |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.25 inch |
| Minimum wheel diameter | 18.0 inch |
| Pad FMSI number | D1247 |
| Template | N072P |
| Hose material | Stainless steel |
| 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
It fits 1973–1986 Chevrolet C10 and C10 Suburban, 1987 Chevrolet R10 and 1987–1988 R10 Suburban, 1975–1978 GMC C15 and C15 Suburban, 1973–1974 GMC C15/C1500 and Suburban, 1979–1986 GMC C1500 and Suburban, and 1987 GMC R1500 and 1987–1988 R1500 Suburban.
Vehicles not on that list are outside this kit’s coverage, and the 2WD setting rules out four-wheel-drive trucks. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Plan the spindle purchase before the brake install, since the calipers and rotors bolt to the modular spindles. Use template N072P to check wheel clearance, as Baer cannot promise fit to every wheel style. Brakes are safety equipment, so a qualified installer should handle the job.
What’s included
The package contains the 6S Black caliper, two-piece rotors with pre-assembled stainless hardware, mounting brackets, stainless braided hoses and hardware.
Not included: the 2.5 inch drop modular spindles and wheels.














