Overview
The Baer Brakes 4301628S is an Extreme Plus front brake system with a silver 1-piece monoblock 6-piston caliper and a 15 inch 2-piece slotted, drilled, zinc plated rotor. It fits 1988–1998 Chevy and GMC C1500 2WD trucks, the 1992–1999 C1500 Suburban models, the 1995–1999 Chevrolet Tahoe and the 1992–1999 GMC Yukon.
Each caliper is machined from US sourced 2618 aluminum forging and assembled in Phoenix, Az. The kit is set up for React 2 inch drop spindles, which are not included, and it uses the FMSI D1247 pad type on the front wheels.
Key features
- Silver powder coated 1-piece monoblock 6-piston caliper in the 6S type
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- Caliper body is CNC machined from US sourced 2618 aluminum forging
- 2-piece slotted, drilled and zinc plated rotor with billet aluminum hat
- Stainless braided hoses, DOT approved, with billet dust caps
Wheel clearance and setup
Larger rotors and calipers leave less room between the brake assembly and the wheel, so clearance should be checked before tires are mounted. Wheel offset, spoke design and the amount of lift all affect how much space is available. Fit the wheel loosely first and rotate it by hand to find contact points, then tighten once clearance is confirmed.
Billet aluminum hubs and two-piece rotors are heavier than stock parts, and that weight changes how the front end loads over rough ground. Check the hub bearings for play after the first trail run, and repack them on a regular schedule. Stainless hardware resists corrosion but still needs an occasional check for torque and tightness.
Pad choice follows the same logic. Use the FMSI D1247 pad type for this system, and avoid mixing pad compounds across the axle so braking stays balanced side to side. Look for glazing, cracking or a pedal that fades on long descents, which signal that the pads are due for replacement.
- Test-fit the wheel before mounting tires
- Check hub bearings for play after the first trail run
- Keep the same pad compound on both sides of the axle
- Inspect braided hoses for chafing near the spindle
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301628S |
| UPC | 90127854198 |
| Kit type | Front brake system |
| Caliper | 1-piece monoblock, 6-piston, 6S, fixed, silver powder coated |
| Pad type | FMSI D1247 |
| Rotor | 15.0 inch outside diameter, 1.25 inch thick, 2-piece, vented |
| Rotor finish | Slotted, drilled and zinc plated |
| Hub | Billet aluminum with premium bearings |
| Wheel bolt pattern | 5×5.00 inch, 5 lug |
| Wheel stud size | M14-1.50 x 47.5mm |
| Minimum wheel diameter | 19.0 inch |
| Brake hose | Stainless steel braided, DOT approved |
| Drive and axle | 2WD, front |
| Template | N117U |
| Country of origin | USA |
Vehicle fitment
It fits 2WD front applications on the 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, when set up with React 2 inch drop spindles.
Model years and models outside that list are not covered, and four-wheel-drive setups are not part of the fitment. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors are pre-assembled with NAS high grade stainless hardware, and the billet hubs carry premium bearings, so the hub assemblies are ready to mount. React 2 inch drop spindles are needed but not supplied, so obtain them separately and confirm they suit your truck. Compare the N117U template with your wheel before mounting. After installation, check pedal firmness and fluid level before driving.
What’s included
The system includes 1-piece monoblock calipers, 2-piece rotors, billet aluminum hubs with premium bearings and billet dust caps, all mounting brackets, stainless braided hoses and hardware.
Not included: React 2 inch drop spindles.
