Overview
The Baer Brakes Pro Plus 4301586GB is a complete front disc brake kit for 1973–1988 Chevrolet and GMC C10, C15 and R-series 2WD half-ton trucks, finished in Grabber Blue. It pairs a 6-piston fixed caliper with a 13 inch two-piece slotted, drilled and zinc-plated rotor, and the system is designed to fit most 17 inch or larger wheels.
Baer engineers the Pro Plus around Dse forged aluminum modular spindles with a 2.5 inch drop, and the calipers are manufactured in Phoenix, Arizona. The kit suits owners who want a performance-grade front brake upgrade on a classic pickup, with a bold color that stands out behind the wheels. The spindles themselves are not included with the kit.
Key features
- Two-piece 6-piston caliper with staggered pistons to minimize uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual seals protect against dust, weather and pressure
- CNC machined from US sourced forged or billet aluminum with a powder coated finish
- Two-piece slotted, drilled and zinc-plated rotor with a billet aluminum hat
- Stainless braided hoses and an FMSI D0731 pad specification
Before you buy
A front disc conversion changes more than the rotor and caliper. The master cylinder, brake lines and proportioning valve all share the load with the new hardware, so confirm the existing hydraulic system can supply a larger caliper before installing. Many owners on classic pickups also service the front wheel bearings and seals while the hubs are apart, because access is already open at that point.
Pad choice affects how the system feels. Street-oriented compounds suit daily driving and cold starts, while firmer compounds can squeal until they warm up. Bed new pads and rotors gradually before heavy use so the friction layer transfers evenly.
- Check master cylinder capacity before installing larger calipers
- Inspect brake lines and fittings for chafing during installation
- Service wheel bearings and seals while the hubs are off
- Re-torque lug nuts after the first few drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301586GB |
| UPC | 90127912485 |
| Caliper | 6-piston (6P), fixed, two-piece |
| Caliper color | Grabber Blue |
| Caliper finish | Powder coated |
| Rotor | 13 inch (13.0 inch outside diameter), two-piece, vented, slotted, drilled, zinc-plated |
| Rotor thickness | 1.1 |
| Rotor hat | Billet aluminum |
| Pad type | FMSI D0731 |
| Brake hose | Steel braided, DOT approved |
| Minimum wheel diameter | 17 inch |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Spindle type | Dse forged aluminum modular 2.5 inch drop spindles |
| Spindles included | No |
| Template | Q072H |
| Drive | 2WD |
| Axle | Front |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
It fits 1973–1986 Chevrolet C10 and C10 Suburban trucks, 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 with 1987–1988 R1500 Suburban models. It is a 2WD application.
Models from 1972 and earlier, 1989 and later, and 4WD trucks are not covered by this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The Dse forged aluminum modular spindles must be fitted before the caliper and rotor assemblies can be mounted, so confirm you have the matching spindles first. Use template Q072H to check clearance against your 17 inch or larger wheels, because Baer cannot guarantee fit across every wheel style. Brakes are safety-critical: bleed the system and test the pedal in a safe area before driving on public roads.
What’s included
The kit includes the 6-piston calipers, 13 inch two-piece rotors with pre-assembled NAS high grade stainless hardware, all mounting brackets, stainless braided hoses and the included hardware.
Not included: Dse forged aluminum modular spindles.














