Overview
The Baer Brakes 4301588MG is a Monster Green Extreme Plus front disc brake kit for 1973–1988 Chevrolet and GMC 2WD 1/2 ton trucks. It pairs a 6S six-piston caliper with a 14.0 inch two-piece slotted and drilled rotor, and it is set up for Dse forged aluminum modular 2.5 inch drop spindles.
Monster Green is the caliper finish. Covered models include the C10, R10, C15, C1500 and R1500 trucks. The rotor requires wheels of at least 18.0 inch diameter, and clearance should be checked against template N072P because fit with every wheel cannot be assured.
Key features
- Single-piece Monoblock caliper with 6 pistons, designated 6S
- Caliper body CNC machined from 2618 aluminum forging and manufactured in Phoenix, Az
- Powder coated Monster Green finish
- Stainless steel pistons plus abutments and noise suppression clips
- Staggered pistons aimed at more even pad wear
- Dual seals against dust, weather and pressure
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Mounting brackets, stainless braided hoses and NAS hardware included
Care and maintenance
A powder coated caliper holds up well when it is kept clean, but road salt and trail mud can dull the finish over time. Rinse the caliper and wheel area after muddy drives, and avoid abrasive pads on the coating. Touching up chipped areas can keep corrosion from starting underneath.
Routine checks focus on the friction surfaces and the hydraulic path. Look for pad thickness that has dropped unevenly, scoring on the rotor face, and fluid at the hose fittings. Clean grease from the rotor before new pads go in, and recheck the hardware after the first few trail runs.
- Rinse the caliper after mud or salt exposure
- Check pad wear on both sides
- Inspect the rotor for scoring or heat marks
- Recheck hardware after early use
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301588MG |
| UPC | 90127912225 |
| Sold as | Kit |
| Caliper | 6S, 1-piece Monoblock, 6 pistons, fixed |
| Caliper color | Monster Green |
| Caliper material | CNC machined 2618 aluminum forging, powder coated |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness (in) | 1.25 |
| Rotor construction | Vented, 2-piece, slotted, drilled, zinc plated, billet aluminum hat |
| Brake pad FMSI number | D1247 |
| Minimum wheel diameter | 18.0 inch |
| Lug count | 5 lug |
| Wheel bolt pattern (in) | 5×4.75/5×5.00 |
| Hose material | Stainless steel |
| Spindle type | Dse Forged Aluminum Modular 2.5 inch drop spindles |
| Spindles included | No |
| Template | N072P |
| Axle | Front |
| Drive | 2WD |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
It covers 1973–1986 Chevrolet C10 and C10 Suburban, 1987 Chevrolet R10, 1987–1988 Chevrolet R10 Suburban, 1975–1978 GMC C15 and C15 Suburban, 1973–1974 GMC C15/C1500 and Suburban, 1979–1986 GMC C1500 and Suburban, 1987 GMC R1500, and 1987–1988 GMC R1500 Suburban.
Non-2WD trucks, years outside 1973–1988, and other GM models such as Blazer or Jimmy are not covered by this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The kit does not include spindles, so the Dse modular spindles need to be on the truck before the Monster Green calipers are fitted. Confirm wheel clearance against template N072P first.
Support the truck on jack stands while the front hubs are being serviced.
What’s included
Included are the Monster Green 6S caliper, the 2-piece rotor pre-assembled with NAS stainless hardware, mounting brackets, and stainless braided hoses.
Not included: Dse forged aluminum modular 2.5 inch drop spindles.














