Overview
The Baer Brakes 4301388CY is a Pro Plus front disc brake system for 1960-1987 Chevy and GMC 2WD 1/2 ton trucks, pairing a six-piston Comp Yellow caliper with a 14 inch two-piece rotor. The kit is meant for trucks that use 2.5 inch drop spindles, and it fits 1960-1986 Chevrolet C10 pickups, the 1967-1986 C10 Suburban, and GMC 1000 through C1500 models.
Billet aluminum hubs arrive with premium bearings packed in Redline synthetic grease, so the front end goes on as a complete assembly. The pads are the D0731 type and the wheel stud pattern is 5×5.00 with 1/2-20 studs.
Key features
- Six-piston fixed caliper in Comp Yellow, built in Phoenix, Arizona from US sourced forged or billet aluminum
- Slotted, drilled and zinc-plated two-piece 14.0 inch vented rotor with billet aluminum hat
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons aimed at more even pad wear
- Dual dust, weather and pressure seals; the dust and weather seals are T compliant.
- Premium bearings, Redline synthetic grease and billet dust caps on the hubs
- Rotors pre-assembled with NAS high grade stainless hardware
Wheel clearance and tire choice
Wheel fit is the first question most owners face after a front brake swap, because the caliper and rotor take up space behind the spokes. Offset and backspacing decide how close the inner barrel sits to the caliper body, so a wheel that clears one truck may rub on another. Measure the clearance with the template and a straightedge before the tire goes on, and recheck it after any change in tire width.
Tire diameter also matters. A larger tire changes gearing, speedometer reading and the load on the front hubs, and it can alter how the brakes feel under hard stops. Heavier wheel and tire combinations add rotating weight, so pads may wear faster on trucks that run big rubber. Keep the lug nuts torqued to the specification in the service manual and recheck them after the first drive.
- Test wheel clearance at full steering lock
- Confirm inner barrel clearance around the caliper
- Recheck lug torque after the first few miles
- Note any change in tire size for speedometer accuracy
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301388CY |
| UPC | 90127876664 |
| Caliper | 6-piston, fixed (6P) |
| Caliper color | Comp Yellow |
| Front rotor | 14.0 inch, vented, two-piece slotted, drilled, zinc-plated |
| Rotor thickness | 1.15 |
| Brake pad | FMSI D0731 |
| Template | Q117P |
| Minimum wheel diameter | 18.0 inch |
| Wheel bolt pattern | 5 lug, 5×5.00 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Spindle type | Cpp nodular iron 2.5 inch drop |
| Spindles included | No |
| Hose material | Steel braided, DOT approved |
| Drive | 2WD |
| Axle | Front |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
It 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. Before ordering, match your year, model and trim against the fitment above.
Chevrolet C/K pickups from 1987-1989, GMC trucks from 1987 onward and 4WD versions are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Spindles are not part of this kit, so Cpp nodular iron 2.5 inch drop spindles must be fitted to the front axle first. Check the Q117P template against your chosen wheel, since Baer cannot guarantee fit for every wheel style and the minimum wheel diameter is 18.0 inch. Keep the truck safely supported on stands while the front wheels are off.
What’s included
Included are the Comp Yellow six-piston front calipers, two-piece 14.0 inch rotors, billet aluminum hubs with bearings and dust caps, mounting brackets, stainless braided hoses and hardware.
Not included: Cpp nodular iron 2.5 inch drop spindles.
