Overview
The Baer Brakes 4301389FR is a complete Pro Plus front disc brake kit for 1960 to 1987 Chevrolet and GMC C10 2WD half-ton trucks. It pairs a six-piston caliper with a 14-inch two-piece rotor, and the caliper is finished in Fire Red.
Baer built the Pro Plus for wheels 18 inches in diameter or larger. The kit is set up for a six-lug 6×5.50 bolt pattern with 1/2-20 x 2.25 inch wheel studs. Billet aluminum hubs, stainless braided hoses, mounting brackets and hardware come with the kit, and it uses the D0731 pad type. The 2.5-inch drop spindle that the kit mounts to is not included.
Key features
- Six-piston fixed 6P caliper with staggered pistons that help minimize uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual seals guard against dust, weather and pressure
- Two-piece slotted, drilled and zinc-plated rotor with a billet aluminum hat
- Rotors pre-assembled with NAS high grade stainless hardware
- Billet aluminum hubs with premium bearings packed in Redline synthetic grease and billet dust caps
- Steel braided hoses, DOT approved
- Caliper manufactured in Phoenix, Arizona, with a powder coated finish
Choosing the right setup
Front disc brakes on a half-ton truck work as one assembly: the caliper clamps the rotor, the pads create friction, and the hub and spindle carry the load. When choosing a setup like this one, check the whole package before ordering, including rotor size, wheel diameter and the room the caliper has inside the wheel. Older trucks often have worn hubs, bearings and hoses, so inspect those parts while the wheels are off.
Upgrades affect each other. A larger rotor and a six-piston caliper change the forces on the bearings, steering parts and master cylinder, so check the rest of the front end before the first drive. Replace pads on both sides of the same axle at the same time to keep braking even, and use fresh brake fluid suited to the hoses and caliper.
Watch for signs of wear: a pulsing pedal, pulling to one side, a grinding noise, or a warm wheel after normal driving. Re-check the bolts and wheel fasteners after the first few runs. Bed in new pads gradually, following the steps supplied with them.
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301389FR |
| UPC | 90127877586 |
| Sold as | Kit |
| Application | GM C10 trucks, 1960-1987 |
| Drive | 2WD |
| Axle | Front |
| Caliper | 6-piston (6P), fixed |
| Caliper color | Fire Red |
| Rotor diameter | 14.0 inch |
| Rotor construction | Vented, 2-piece |
| Rotor thickness | 1.15 |
| Rotor surface | Slotted, drilled and zinc plated |
| Minimum wheel diameter | 18.0 inch |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Pad type | FMSI D0731 |
| Brake hose | Steel braided, DOT approved |
| Hub | Billet aluminum with premium bearings |
| Spindle type | Cpp nodular iron 2.5 inch drop |
| Template | Q117P |
| Country of origin | USA |
Vehicle fitment
Listed fitment for the 4301389FR covers 1960-1986 Chevrolet C10, 1967-1986 Chevrolet C10 Suburban, 1960-1966 and 1987-1989 Chevrolet Suburban, 1966 GMC 1000, 1960-1965 GMC 1000 Series, 1975-1978 GMC C15, 1967-1974 GMC C15/C1500 and 1979-1986 GMC C1500.
Pickups from 1987 onward and 4WD trucks are not covered. Confirm your vehicle’s year, model and trim before ordering. For a 1987 truck, check it against template Q117P before installation.
Installation notes
The rotors and calipers mount to a 2.5-inch drop Cpp nodular iron modular spindle, and that spindle is not in the box, so have it on hand before starting. Use Q117P to compare the assembly with your chosen wheel, because Baer cannot guarantee fit with every wheel style. Since the minimum wheel diameter is 18 inches, verify caliper clearance inside each wheel before the truck returns to the road.
What’s included
Six-piston front brake kit with 14-inch two-piece rotors, billet aluminum hubs with premium bearings and billet dust caps, mounting brackets, stainless braided hoses and hardware.
Not included: the 2.5-inch drop modular spindles.
