Overview
Baer’s Track4 front disc brake kit in Comp Yellow, part number 4301512CY, is built for 2WD 1/2 ton Chevrolet and GMC trucks. It covers 60-87 Chevy and GMC models, with Chevrolet and GMC coverage running from 1960 to 1989.
Each corner uses a 4-piston T4 caliper clamped to a 13 inch rotor that is slotted, drilled and zinc plated. Hubs arrive with bearings pre-packed in Redline synthetic grease, and the package covers mounting brackets, braided stainless hoses and hardware. The kit is designed for a 2.5 inch drop modular spindle, which is not part of the package.
Key features
- T4 caliper built in Phoenix, Az with four pistons
- Caliper body CNC machined from forged or billet aluminum made in the USA
- Comp Yellow powder coated finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual seals against dust, weather and pressure
- 13 inch 1-piece slotted, drilled, zinc plated rotor
- Billet hubs with premium bearings and billet dust caps
Before you mount the calipers
Spindle choice shapes everything else in a drop-spindle conversion. A drop spindle lowers the hub and changes scrub radius, steering geometry and the clearance between the rotor and the wheel. Before mounting, confirm the spindle, control arms and steering components are compatible with each other, since a mismatch affects alignment more than brake performance.
Upper and lower ball joints, tie rods and the steering arm are often worked on at the same time. Replacing worn joints while the hub is off costs less than repeating the job later. After the install, have the front end aligned and recheck torque on the caliper bracket and wheel fasteners after a short test drive.
- Measure wheel clearance before ordering tires
- Inspect brake hoses for chafing against the drop spindle
- Keep spindle and hub bearing surfaces clean
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301512CY |
| UPC | 90127876954 |
| Caliper | T4, 4-piston fixed |
| Caliper color | Comp Yellow |
| Caliper material | Forged or billet aluminum, CNC machined |
| Rotor type | 1-piece slotted, drilled, zinc plated |
| Rotor construction | Vented |
| Rotor outside diameter | 13.0 inch |
| Rotor thickness | 1.1 |
| Brake pad FMSI number | D0749 |
| Brake hose | Steel braided, DOT approved |
| Drive | 2WD |
| Axle | Front |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Minimum wheel diameter | 17.0 inch |
| Spindle type | Cpp nodular iron 2.5 inch drop spindle |
| Spindles included | No |
| Template | Q082H |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Chevrolet C10 pickups fit 1960 through 1986, the C10 Suburban fits 1967 through 1986, and the Chevrolet Suburban fits 1960 through 1966 and 1987 through 1989. GMC fits the 1000 Series from 1960 to 1965, the 1966 GMC 1000, the C15 from 1975 to 1978, the C15/C1500 from 1967 to 1974, and the C1500 from 1979 to 1986. Years outside these ranges, including 1987 to 1989 Chevrolet C10 pickups, are not covered.
Years outside these listed ranges are not covered, including any 1987 to 1989 Chevrolet C10 pickup. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Plan on a 2.5 inch drop modular spindle with the 5×5.00 pattern in place before mounting the calipers, since spindles are not supplied with this kit. Test wheel room using the Q082H template, because Baer cannot guarantee fit with every wheel style. Brake work is not a beginner task, so a licensed shop should torque each fastener and bleed the lines.
What’s included
The package contains the T4 caliper set on the 13 inch rotor, billet hubs with bearings and dust caps, mounting brackets, stainless braided hoses and hardware.
Not included: spindles.














