Overview
The Baer Brakes 4301627S is a silver Extreme Plus front brake system kit for 1988–1998 Chevrolet and GMC C1500 2WD trucks and 1992–1999 C1500 2WD SUVs, built to work with React 2-inch drop spindles.
The kit centers on a one-piece monoblock six-piston 6S caliper that clamps onto a 14-inch, two-piece slotted, drilled, zinc-plated rotor. Baer builds the system around the widely used D1247 pad type and includes dust and weather seals, so the front brakes arrive as one matched assembly. It targets owners who want a larger front brake upgrade on a truck that already runs drop spindles, including Suburban, Tahoe and Yukon SUVs in the listed years.
Key features
- One-piece monoblock caliper with six stainless steel pistons, manufactured in Phoenix, Az
- Caliper body CNC machined from U.S.-sourced 2618 aluminum forging
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual seals guarding against dust, weather and pressure
- Powder-coated silver finish
- Two-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Billet aluminum hubs with premium bearings packed in Redline synthetic grease and billet dust caps
Before you buy
A front brake upgrade on a drop-spindle truck changes more than stopping force at the wheel. The caliper and rotor sit at a different position relative to the spindle, so confirm the tire and wheel still clear the caliper through full steering lock before driving. Recheck clearance after any change in tire size.
Bigger rotors run hot in heavy use, so pad compound and brake fluid matter. Use a fluid rated for high-temperature work, bleed the system fully after hose or caliper changes, and inspect the braided hoses for chafing against the spindle or tire once the truck is back on the ground.
- Torque wheel studs after the first few drives
- Replace pads and rotors together when worn
- Check hub bearing preload after service
- Inspect braided hoses for abrasion and leaks
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301627S |
| UPC | 90127854129 |
| Axle | Front |
| Drive | 2WD |
| Caliper | 6S monoblock, fixed, six pistons |
| Caliper color | Silver |
| Rotor outside diameter | 14.0 inch |
| Rotor thickness | 1.25 |
| Rotor type | Two-piece, vented, slotted, drilled, zinc-plated |
| Brake pad FMSI number | D1247 |
| Lug count | 5 |
| Wheel bolt pattern | 5×5.00 inch |
| Wheel stud size | M14-1.50 x 47.5mm |
| Minimum wheel diameter | 18.0 inch |
| Brake hose material | Stainless steel, braided |
| Spindle type | React 2-inch drop spindles, not included |
| Template | N117P |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
It fits 1988–1998 Chevrolet C1500, 1992–1999 Chevrolet C1500 Suburban, 1995–1999 Chevrolet Tahoe, 1988–1998 GMC C1500, 1992–1999 GMC C1500 Suburban and 1992–1999 GMC Yukon, all with React 2-inch drop spindles.
Years outside those ranges, such as 1999 and later C1500 trucks, are not in the list, and 4WD and 2500 or 3500 models are not covered here. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Stainless braided hoses, mounting brackets and hardware are included, so the caliper and rotor install as one matched set. Fit with every wheel style is not guaranteed, so use template N117P to compare the system with your chosen wheel. The 14-inch rotor fits most wheels 18 inches or larger.
What’s included
Monoblock six-piston 6S caliper in silver, two-piece 14-inch slotted, drilled and zinc-plated rotors with billet aluminum hats, billet aluminum hubs with premium bearings, stainless braided hoses, mounting brackets and hardware.
Not included: React 2-inch drop spindles.
