Overview
The Baer Brakes 4301512S is a Track4 front brake system for 2WD Chevrolet C10 trucks and related GMC models from 1960 to 1986. It is made for use on CPP 2.5 inch drop spindles, which are not included. The kit has a silver 4-piston T4 caliper on a 13.0 inch, 1-piece slotted, drilled rotor with a 5 lug, 5×5.00 bolt pattern.
Billet aluminum hubs come assembled with premium bearings packed in Redline synthetic grease, along with billet dust caps. Steel braided hoses are DOT approved. Baer designed the Track4 for wheels 17 inch or larger, and the minimum wheel diameter is 17.0 inch.
Key features
- 4-piston T4 caliper in silver, powder coated
- Stainless pistons with noise suppression clips
- Staggered pistons reduce uneven pad wear
- Dual seals for dust, weather and pressure
- 1-piece slotted, drilled, zinc-plated rotor
- Billet aluminum hubs with premium bearings and billet dust caps
- Steel braided hoses, DOT approved
Spindle compatibility
A Track4 conversion is only as good as the spindle it bolts to. Because the CPP 2.5 inch drop modular spindles are a separate purchase, confirm they are in place and in good condition before starting the install. Mismatched spindles can throw off hub alignment and make the rotor and caliper sit incorrectly.
Older trucks often show wear in the front end, including worn ball joints, tie rod ends and wheel bearings. Replacing these parts while the front end is apart is practical, since the hubs and rotors are already off. Check the steering geometry after the new system is installed, because a change in ride height can shift alignment settings.
Brake lines, the master cylinder and the proportioning arrangement should be inspected as part of the same job. Bleeding the system fully removes air, which keeps pedal firmness consistent once the truck is back on the road.
- Confirm spindle type before ordering the brake kit
- Inspect ball joints and tie rod ends
- Re-check alignment after a ride height change
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301512S |
| UPC | 844165050803 |
| Format | Kit |
| Caliper | T4, 4-piston, fixed type |
| Caliper color | Silver |
| Rotor type | 1-piece, vented |
| Rotor diameter | 13.0 inch |
| Rotor thickness | 1.1 inch |
| Rotor style | Slotted, drilled, zinc plated |
| Rotor material | Iron |
| Front rotor included | Yes |
| Min wheel diameter | 17.0 inch |
| Brake pad FMSI | D0749 |
| Wheel bolt pattern | 5×5.00, 5 lug |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Brake hoses | Steel braided, DOT approved |
| Hub | Billet aluminum, assembled with premium bearings |
| Drive | 2WD |
| Spindle type | CPP nodular iron 2.5 inch drop spindles |
| Spindles included | No |
| Template | Q082H |
| Emission code | 6 |
| Country of origin | US |
Vehicle fitment
The kit fits 1960–1986 Chevrolet C10, 1967–1986 Chevrolet C10 Suburban, 1960–1966 and 1987–1989 Chevrolet Suburban, 1966 GMC 1000, 1960–1965 GMC 1000 Series, 1975–1978 GMC C15, 1967–1974 GMC C15/C1500 and 1979–1986 GMC C1500 trucks.
Other C/K pickups and Suburbans outside these year ranges, and non-GM trucks, are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The kit is designed for CPP 2.5 inch drop modular spindles, and those spindles are not included, so they must be in place before mounting the Track4 hubs. Billet hubs arrive with bearings installed. The wheel stud size is 1/2-20 x 2.25 inch on a 5×5.00 pattern.
What’s included
Front Track4 brake kit with the T4 caliper, 13.0 inch rotor, billet aluminum hubs with bearings and billet dust caps, mounting brackets, steel braided DOT approved hoses and hardware.
Not included: CPP 2.5 inch drop spindles and lug nuts.














