Overview
The Baer Brakes 4301680R is a Classic Series front brake kit with 2.5 inch drop nodular iron spindles, made for 1963–1986 Chevrolet C10 and GMC 1500 2WD trucks. It fits the 1963–1986 C10 and 1500 pickups, the 1967–1986 C10 Suburban, the 1987–1988 R10 and R10 Suburban, and several GMC C15 and C1500 models. The kit replaces the front discs with 13.15 inch vented rotors and two-piston aluminum pin drive calipers.
The Classic Series brings modern brakes to small wheels at an economical price, and this kit is built for wheels 17 inch and larger. The caliper is red powder coated with a black Baer logo. The pads are the common FMSI D0731 type and pair with the 2.5 inch drop spindles included in the kit.
Key features
- Aluminum two-piston pin drive caliper with red powder coat and black Baer logo
- Slotted, drilled and zinc plated 1-piece integral hub rotors, 13.15 inch outside diameter
- Stainless braided brake hoses, DOT approved, for the front calipers
- Uses the common FMSI D0731 ceramic brake pad
- Dust and weather seals on the calipers
- Rotors come with races fitted and bearings packed with Redline synthetic grease
Before you buy
Drop spindles change how the front wheels sit and steer, so the kit is best matched to a truck that will keep its new geometry. Plan for an alignment and a steering check once the work is finished, and inspect the tie rod ends and ball joints while the front end is apart. Wheel choice matters too: a larger wheel fills the space around a big rotor and caliper, so measure clearance behind the spokes before buying tires.
Pad wear is easy to track on a truck driven both on and off the road. Look at pad thickness each time the wheels come off, and watch for uneven wear across the two sides, which can point to a sticking caliper slide or a failing hose. A brake fluid change every couple of years keeps the system ready for heavy use, especially on steep grades or when towing.
- Check wheel clearance around the caliper before buying wheels
- Recheck lug nut torque after the first few drives
- Inspect hoses for chafing where they pass the spindle
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301680R |
| UPC | 90127965061 |
| Kit type | Front brake kit with 2.5 inch drop nodular iron spindles |
| Caliper | Aluminum, 2-piston, floating pin drive, red powder coated |
| Pad type | FMSI D0731, ceramic |
| Rotor | 13.15 inch outside diameter, 1.15 inch thick, vented |
| Rotor type | 1-piece integral hub, slotted, drilled and zinc plated |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Minimum wheel diameter | 17.0 inch |
| Brake hose | Stainless braided, DOT approved |
| Drive and axle | 2WD, front |
| Country of origin | USA |
Vehicle fitment
Baer’s manufacturer fitment list for this kit covers the 1963–1986 Chevrolet C10, the 1967–1986 Chevrolet C10 Suburban, the 1987 Chevrolet R10 and 1987–1988 R10 Suburban, the 1966 GMC 1500, the 1963–1965 GMC 1500 Series, the 1975–1978 GMC C15 and C15 Suburban, the 1967–1974 GMC C15/C1500 and Suburban, the 1979–1986 GMC C1500 and Suburban, and the 1963–1966 GMC Suburban.
Full-size trucks from 1988 on, including the 1988–1998 C1500 models, are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The 2.5 inch drop spindles change front geometry, so have the front alignment and steering checked after installation. The mounting brackets and stainless braided hoses are included, so no separate brackets are needed. Brakes are safety-critical, so check pedal firmness and fluid level before the truck is driven on the road.
What’s included
The kit includes the 2.5 inch drop nodular iron spindles, 13.15 inch rotors with races installed and bearings packed, the aluminum calipers with dust and weather seals, mounting brackets, stainless braided hoses, dust caps and all necessary hardware.
