Overview
The Baer Brakes 4301389HO is a Pro Plus front brake kit in Hugger Orange for 1960–1989 Chevrolet and GMC C10, C15 and Suburban trucks. It pairs a 6-piston fixed caliper with a 14.0 inch two-piece slotted, drilled and zinc plated rotor, and it is designed for use with a 2.5 inch drop spindle.
Baer built the kit for 6-lug trucks with a 6×5.50 bolt pattern, and the hubs, mounting brackets, stainless braided hoses and hardware all come with it. The 14 inch Pro Plus is intended for wheels 18 inch or larger, and the kit is supplied without spindles.
Key features
- Two-piece 6-piston 6P fixed caliper in Hugger Orange with a powder coated finish
- Two-piece slotted, drilled and zinc plated rotor with a billet aluminum hat
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to reduce uneven pad wear
- Dual dust, weather and pressure seals on the caliper
- Billet aluminum hubs with premium bearings packed in Redline synthetic grease
- DOT approved steel braided brake hoses
Spindle and wheel fit
The spindle sets the hub position, the rotor height and the wheel offset that the brake parts depend on. A spindle with the wrong drop or bolt pattern can throw off caliper clearance and make the rotor sit out of line. Confirm the spindle matches the axle and steering components on your truck before the kit is assembled.
Wheel clearance is worth checking after the brakes are mounted, not only before. Turn the wheel full lock in both directions and look for contact between the caliper, hose and tire or fender. Braided hoses need enough slack to flex with suspension travel, so route them away from moving parts and hot exhaust areas.
- Check spindle compatibility with axle and steering parts
- Route hoses clear of tires and suspension arms
- Test wheel turning after the caliper is installed
- Confirm bolt pattern before mounting any wheel
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301389HO |
| UPC | 90127877661 |
| Caliper | 6-piston (6P), fixed, two-piece |
| Caliper color | Hugger Orange |
| Rotor | Two-piece, vented, slotted, drilled and zinc plated |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.15 |
| Minimum wheel diameter | 18.0 inch |
| Pad type | FMSI D0731 |
| Hose | Steel braided, DOT approved |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Spindle type | Cpp nodular iron, 2.5 inch drop |
| Spindles included | No |
| Template | Q117P |
| Drive | 2WD |
| Axle | Front |
| Kit type | Kit |
| Country of origin | USA |
| Grade type | Performance |
Vehicle fitment
It fits 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 trucks. It is a 2WD front axle kit under the GM C10 trucks 60-87 application.
Trucks with 4WD drive and Chevrolet or GMC pickups from 1990 onward are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Check clearance with the Q117P template against the wheel you plan to run before mounting, since Baer does not guarantee wheel fit across every style. The 2.5 inch drop spindle must be installed before the hub and caliper assembly goes on. Given the braided lines and caliper work, have a shop experienced with disc brakes inspect the install before the truck is driven.
What’s included
Six-piston 6P calipers, two-piece rotors pre-assembled with NAS high grade stainless hardware, billet aluminum hubs with premium bearings and billet dust caps, all mounting brackets, stainless braided hoses and hardware.
Not included: the drop spindle. Spindles are not included, so the Cpp nodular iron 2.5 inch drop spindle must be sourced separately.














