Overview
The 4301388HO is the Baer Brakes Pro Plus front brake kit in Hugger Orange, built for 1960 through 1987 Chevrolet and GMC C10 2WD half-ton trucks that run five-lug hubs. The caliper is a six-piston unit on a 14-inch vented two-piece rotor.
The bolt pattern is 5×5.00 with 1/2-20 x 2.25 inch studs, and the system suits wheels 18 inches in diameter or larger. Billet aluminum hubs, stainless braided hoses, brackets and hardware come in the package. The 2.5-inch drop spindle is a separate requirement and is not included.
Key features
- Hugger Orange six-piston fixed caliper, manufactured in Phoenix, Arizona, with a powder coated finish
- Dual dust, weather and pressure seals protect the piston area
- Staggered pistons reduce uneven pad wear
- Stainless pistons, abutments and noise suppression clips
- Two-piece rotor, slotted, drilled and zinc plated, mounted to a billet aluminum hat
- Hubs with premium bearings packed in Redline synthetic grease
- NAS high grade stainless hardware pre-assembles the rotors
- DOT approved steel braided hoses
Street and trail driving
Front disc brakes handle most of the stopping load on a half-ton truck, so their condition matters on steep grades and in stop-and-go traffic. A six-piston caliper with staggered pistons is designed to press the pads more evenly, which can help reduce uneven wear. Pad compound still plays a large role, so choose pads to suit how the truck is used.
Off-road, mud and water can enter the caliper and rotor area. Rinse the assembly after wet runs and look for pad glazing or rust on the rotor face. Check the braided hoses for abrasion where they pass near the frame or suspension, and keep the dust caps in place to protect the hubs.
- Inspect pads after wet or muddy runs
- Look for abrasion on braided hoses
- Keep dust caps in place
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4301388HO |
| UPC | 90127876787 |
| Sold as | Kit |
| Application | GM C10 trucks, 1960-1987 |
| Drive | 2WD |
| Axle | Front |
| Caliper | 6-piston (6P), fixed |
| Caliper color | Hugger Orange |
| Rotor diameter | 14.0 inch |
| Rotor construction | Vented, 2-piece |
| Rotor thickness | 1.15 |
| Rotor surface | Slotted, drilled and zinc plated |
| Minimum wheel diameter | 18.0 inch |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Pad type | FMSI D0731 |
| Brake hose | Steel braided, DOT approved |
| Hub | Billet aluminum with premium bearings |
| Spindle type | Cpp nodular iron 2.5 inch drop |
| Template | Q117P |
| Country of origin | USA |
Vehicle fitment
Listed fitment for the 4301388HO names these applications: 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.
Pickups built after 1987 are not included, apart from the 1987-1989 Suburban entry, and four-wheel-drive trucks are not shown. Baer’s application note runs to 1987 while the C10 list ends in 1986, so check a 1987 truck carefully. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Plan for the 2.5-inch drop spindle, which is necessary and not part of the kit. Baer cannot guarantee wheel fit across every style, so test the planned five-lug wheel against template Q117P first. Verify clearance against the 18-inch minimum wheel diameter before the truck is driven.
What’s included
Pro Plus front brake kit with six-piston calipers, two-piece 14-inch rotors with billet aluminum hats, billet hubs with bearings and dust caps, mounting brackets, braided stainless hoses and hardware.
Not included: Cpp nodular iron 2.5-inch drop modular spindles.
