Overview
The Baer Brakes 4301628B is the black finish of the Extreme Plus front brake system, a kit for two-wheel-drive GM C1500 trucks from 1988 to 1998 and C1500 Suburban and Yukon SUVs from 1992 to 1999. Its core is a 1-piece Monoblock, 6-piston, 6S caliper that squeezes a 15 inch two-piece rotor.
The kit is stated to be made with U.S.-sourced 2618 aluminum forging and CNC machining, with a powder-coated finish on the caliper. Dust and weather seals, D1247 pads and billet aluminum hubs are part of the package. It is intended for trucks running React 2 inch drop spindles.
Key features
- Black 6S caliper, 1-piece Monoblock with six pistons
- Stainless steel pistons plus abutments and clips to cut noise
- Staggered pistons aim to reduce uneven pad wear
- Dual seals rated for dust, weather and pressure
- Zinc-plated, drilled and slotted two-piece rotor with billet hat
- Billet aluminum hubs with premium bearings and billet dust caps
Caliper finish and upkeep
A powder-coated caliper holds its color well when it is cleaned with mild soap and water. Strong solvents, abrasive pads and high-pressure washing at close range can dull the finish or lift the coating at edges. Wiping away brake dust regularly keeps the caliper looking fresh and makes it easier to spot leaks or cracks.
Finish is only one part of upkeep. The pads, rotor face and hub bearings deserve regular attention, since they decide how the brakes feel and how long the system lasts. Check the caliper slide pins during pad changes so the caliper floats freely and wears the pads evenly.
- Clean with mild soap and water rather than harsh solvents
- Wipe brake dust regularly to spot leaks early
- Check slide pins for smooth movement at pad changes
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301628B |
| UPC | 90127854174 |
| Caliper | 6S, 1-piece Monoblock, 6-piston, fixed |
| Caliper color | Black |
| Brake pad | D1247 FMSI |
| Rotor | Vented, 2-piece, slotted, drilled, zinc-plated; 15.0 inch outside diameter |
| Rotor thickness | 1.25 |
| Hub | Billet aluminum |
| Brake hose | Stainless steel braided, DOT approved |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 |
| Wheel stud size | M14-1.50 x 47.5mm |
| Minimum wheel diameter | 19.0 inch |
| Drive | 2WD |
| Axle | Front |
| Spindles included | No |
| Template | N117U |
| Country of origin | USA |
Vehicle fitment
Model years listed: 1988–1998 Chevrolet C1500 and GMC C1500, 1992–1999 Chevrolet C1500 Suburban, 1995–1999 Chevrolet Tahoe, 1992–1999 GMC C1500 Suburban and 1992–1999 GMC Yukon. The application text reads GM C1500 Trucks 88-98 and GM C1500 SUVs 92-99, 2WD, with React 2 inch drop spindles.
Four-wheel-drive versions and years beyond these ranges are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
- React 2 inch drop spindles must already be in place or be installed; the kit does not supply them.
- Use template N117U to check the rotor against the wheel you plan to use, since Baer does not guarantee fit with every wheel style.
- Hoses, brackets and hardware are included; the rotors come pre-assembled with stainless hardware.
What’s included
This kit covers the black 6S caliper, two-piece slotted and drilled rotors with billet hats, billet aluminum hubs with bearings and billet dust caps, stainless braided hoses, mounting brackets and hardware.
Not included: React 2 inch drop spindles.
