Overview
The Baer Brakes Extreme Plus front brake system, part 4301107MG, is a complete front disc brake kit in Monster Green for 1978–1988 GM G-Body cars and 1982–2003 Chevrolet S10 and GMC S15 pickups. It pairs a 1-piece Monoblock 6-piston, 6S caliper with a 14 inch two-piece slotted, drilled and zinc plated rotor.
The kit comes assembled on modified stock height spindles, so the billet aluminum hubs, bearings and rotors arrive ready for installation on the front axle of a 2WD vehicle. Baer also lists S10 Blazer and S15 Jimmy applications, covered in the fitment section below. The pads are the popular D1247 type.
Key features
- 1-piece Monoblock, 6-piston, 6S caliper manufactured in Phoenix, Az
- CNC machined from US sourced 2618 aluminum forging
- Powder coated caliper finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- 2-piece slotted, drilled, zinc plated rotor with billet aluminum hat
- Billet aluminum hubs with premium bearings packed with Redline synthetic grease and billet dust caps
Monoblock caliper basics
A one-piece monoblock caliper has its body cast or machined as a single unit, which helps it hold its shape under heavy braking. Pistons in this style push pads evenly against the rotor, and staggered piston layouts are meant to reduce uneven pad wear over time. Pad selection still matters, so match the friction material to the driving you do most.
Older G-body and S10 chassis often show rust on the caliper bracket and the spindle mounting faces. Clean and inspect those surfaces during installation, and replace any corroded hardware before the kit is bolted down. Check the rotor for heat marks after long descents and stop-and-go driving.
- Inspect the mounting bracket for rust before installing
- Replace corroded hardware rather than reusing it
- Check pad material against your typical driving
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301107MG |
| UPC | 90127918746 |
| Caliper | 6S, 1-piece Monoblock, 6-piston, fixed |
| Caliper color | Monster Green |
| Rotor outside diameter | 14.0 inch |
| Rotor construction | Vented, 2-piece, slotted, drilled, zinc plated |
| Rotor thickness | 1.25 |
| Minimum wheel diameter | 18.0 inch |
| Pad FMSI number | D1247 |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.75 |
| Wheel stud size | M12-1.50 x 51.5mm |
| Hose material | Stainless steel |
| Spindles | Stock height, included |
| Axle | Front |
| Template | N085P |
| Country of origin | USA |
| Sold as | Kit |
Vehicle fitment
It fits 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.
Years outside these ranges, such as 2004 and later S10 pickups, are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The spindles and hubs arrive pre-assembled, and the rotors come with NAS high grade stainless hardware. Wheel fit is not guaranteed across every style, so compare the N085P template with your intended wheel before buying wheels. Brake work is safety critical, so have a qualified technician install the kit and test the brakes before driving.
What’s included
- 1-piece Monoblock 6S caliper with 6 pistons
- 2-piece slotted, drilled, zinc plated rotors with NAS high grade stainless hardware
- Billet aluminum hubs with premium bearings and billet dust caps, on modified stock height spindles
- All mounting brackets, stainless braided hoses and hardware
