Overview
The Baer Brakes Extreme Plus front disc brake kit, part number 4301391HO in Hugger Orange, is intended for 2WD 1/2 Ton Chevy and GMC trucks built from 1960 through 1986. The core is a 6-piston monoblock caliper working a 14-inch rotor with a billet aluminum hat.
The kit is built around the Cpp Nodular Iron 2.5 Inch Drop Modular Spindle, which carries a 6-lug, 6×5.5BC pattern and is not part of the box. The 14-inch rotor is designed to fit most 18-inch or larger wheels, and template N117P is the check to run before selecting a wheel.
Key features
- One-piece monoblock 6S caliper with six pistons, made in Phoenix, AZ
- Caliper body CNC machined from U.S. sourced 2618 aluminum forging
- Two-piece rotor with billet aluminum hat, slotted, drilled and zinc plated
- Stainless steel pistons and noise suppression clips with staggered piston placement
- Dual seals guard against dust, weather and hydraulic pressure
- Rotor and hardware arrive pre-assembled with NAS high grade stainless fasteners
- Billet hubs with premium bearings packed in Redline synthetic grease, plus billet dust caps
- Powder coated finish with stainless steel braided hoses
Hydraulic lines and fluid care
Braided stainless lines hold their shape better than rubber under heat and pressure, but they still need a periodic look. Check the fittings at the caliper and the frame bracket for seepage, and make sure the hose does not rub on the suspension or tire when the wheel turns. A line that kinks during turns will restrict fluid flow.
Hydraulic fluid is the other half of the system. Old fluid holds water, which lowers its boiling point and can cause a soft pedal during hard stops. Bleed the system after any caliper or line work so no air remains in the caliper.
- Inspect fittings for seepage at each service
- Confirm the hose clears the tire and suspension
- Replace fluid on a regular schedule
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301391HO |
| UPC | 90127877364 |
| Sold as | Kit |
| Axle | Front |
| Drive | 2WD |
| Caliper | 6S, 6-piston monoblock, fixed |
| Caliper color | Hugger Orange |
| Rotor type | 2-piece, vented, slotted, drilled, zinc plated |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.25 |
| Pad type | FMSI D1247 |
| Lug count | 6 lug |
| Wheel bolt pattern | 6×5.50 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Minimum wheel diameter | 18.0 inch |
| Spindle type | Cpp Nodular Iron 2.5 Inch Drop Spindles |
| Spindles included | No |
| Hose material | Stainless steel |
| Template | N117P |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
Listed by the manufacturer for 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.
Four-wheel-drive trucks are outside this kit’s 2WD listing, and C10 trucks from 1987 on are not on the list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Since spindles are not included, match the front spindle to the Cpp 2.5 inch drop modular spindle, 6 lug with 6×5.5BC, before fitting this caliper. Check wheel clearance against template N117P because the minimum wheel diameter is 18.0 inch. Brakes are safety equipment, so test the pedal before regular driving.
What’s included
The kit includes the 6S monoblock caliper, the pre-assembled 14-inch rotor with billet hat, billet hubs with bearings and dust caps, mounting brackets, stainless braided hoses and hardware.
Not included: The Cpp Nodular Iron 2.5 Inch Drop Modular Spindle. The kit is designed to mount to that spindle, which is not supplied.
