Overview
The Baer Brakes 4301107FR is an Extreme Plus front disc brake system in Fire Red, built around a 14 inch two-piece rotor and a 1-piece Monoblock 6-piston caliper. The application lines read 78-88 for GM G-Body vehicles, 82-04 for S10 and S15 2WD pickups, and 83-97 for S10 and S15 2WD Blazer and Jimmy models.
It is sold as a complete front kit. The billet aluminum hubs come assembled with bearings on modified stock height spindles, so the hub, rotor and caliper arrive as one set rather than as separate parts. The caliper uses stainless pistons and dual seals for dust, weather and pressure, and the kit is matched to the D1247 pad type.
Key features
- 1-piece Monoblock, 6-piston, 6S caliper made in Phoenix, AZ
- Caliper body CNC machined from U.S.-sourced 2618 aluminum forging
- Powder coated caliper finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to reduce uneven pad wear
- Dual seals for dust, weather and pressure
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Rotors pre-assembled with NAS high grade stainless hardware
Before you buy
A front kit with a larger caliper changes more than the brakes at the corner. Because the hubs and spindles arrive assembled, the bearings, steering knuckle interface and brake lines are all part of one replacement, so plan the work around the whole front end rather than the rotor alone. Inspect ball joints, tie rod ends and wheel bearings before the old parts come off, since worn steering components affect alignment and feel after a front-end swap.
Wheel choice matters as much as the caliper. Larger calipers need room behind the spokes, and a wheel that cleared the stock brakes may not clear this one. Check backspacing and offset against the clearance template before buying tires, and keep in mind that a different offset changes scrub radius and can alter steering feel.
- Inspect ball joints and tie rod ends before installation
- Check wheel backspacing against the clearance template
- Re-torque lug nuts after the first few drives
- Bleed the hydraulic system after any hose work
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301107FR |
| UPC | 90127918524 |
| Axle | Front |
| Sold as | Kit |
| Caliper | 6S Monoblock, 1-piece, 6 pistons, fixed |
| Caliper color | Fire Red |
| Rotor type | 2-piece, vented |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness (in) | 1.25 |
| Rotor surface | Slotted, drilled and zinc plated |
| Pad FMSI number | D1247 |
| Includes spindles | Stock height, assembled |
| Hose material | Stainless steel |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75 |
| Wheel stud size | M12-1.50 x 51.5mm |
| Minimum wheel diameter | 18.0 inch |
| Template | N085P |
| Emission code | 6 |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
The manufacturer fitment list names 1978–1988 Buick Regal, 1978–1987 Chevrolet El Camino, 1978–1983 Chevrolet Malibu, 1978–1988 Chevrolet Monte Carlo, 1982–2003 Chevrolet S10, 1983–1994 Chevrolet S10 Blazer, 1982–1990 GMC S15, 1983–1991 GMC S15 Jimmy, 1978–1981 and 1985–1988 Oldsmobile Cutlass, 1978–1988 Oldsmobile Cutlass Supreme, and 1978–1988 Pontiac Grand Prix.
Not on the list: the F-body Camaro and Firebird, full-size GM pickups, and S10 or S15 years outside the ranges above. The application lines run to 2004 and 1997, but the list ends at 2003 for S10 pickups and 1994 for S10 Blazer, so check the model year against both. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Because the hubs and spindles come assembled at stock height, treat this as a front-end replacement rather than a caliper-only swap. Check wheel clearance with template N085P before mounting wheels, and use wheels of at least 18.0 inch diameter. Brakes are safety equipment, so have the work checked by a qualified technician before driving.
What’s included
The kit includes the 6S Monoblock caliper, two-piece 14 inch rotors pre-assembled with stainless hardware, billet aluminum hubs with premium bearings packed in Redline synthetic grease, billet dust caps, stock height spindles, stainless braided hoses, mounting brackets and hardware.














