Overview
Baer Brakes part 4262255GB is a 13 inch SS4 Plus rear disc brake kit for Ford axles that have an 8 inch or 9 inch small bearing axle flange. The package centers on a Grabber Blue S4 four-piston fixed caliper clamping a two-piece, slotted, drilled rotor, meant for five-lug wheels on a 5×4.50/5×4.75 pattern.
The backing plate serves as the caliper mount and houses a modern one-piece park brake shoe assembly, so the parking brake comes with the system. The rotors come pre-assembled with NAS high grade stainless hardware. No vehicles are named for this kit.
Key features
- Grabber Blue powder coated S4 caliper with four pistons
- Pistons are hard anodized aluminum, and abutments are stainless steel
- Dual seals protect against dust, weather and pressure
- Two-piece rotor that is slotted, drilled and zinc plated
- Billet aluminum rotor hat for the two-piece design
- Integrated one-piece park brake shoe assembly
- Manufactured in Phoenix, Arizona, from US-sourced aluminum
Managing heat on hard use
Rear brakes do much of their work on downhill runs and in stop-and-go driving, and heat builds quickly in that case. A two-piece rotor with a billet hat allows the friction ring to be replaced without changing the mounting hub, which keeps service simpler over time. Slotted and drilled faces help release gas and debris from the pad surface, although they do not remove heat on their own.
Brake fade shows up as a soft pedal after repeated stops, and it is a sign the system is being worked beyond its comfortable range. Allowing the brakes to cool between runs, using a lower gear on descents, and checking fluid condition after a hard day all help. Park brake shoes should also be inspected at the same time, because heat can change their adjustment.
- Use engine braking on long descents
- Let rotors cool before a wheel removal
- Inspect brake fluid after heavy use
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262255GB |
| UPC | 90127947548 |
| Sold as | Kit |
| Caliper | S4, fixed, four pistons |
| Caliper color | Grabber Blue |
| Rotor | 13.0 inch outside diameter, vented, two-piece, slotted, drilled, zinc plated |
| Rotor thickness | 0.81 |
| Axle | Rear, Ford 8 inch/9 inch small bearing flange |
| Brake hose | Steel braided, DOT approved |
| Park brake | Included; park brake cables not included |
| Pad FMSI number | DR1-C |
| Template | S135H |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.50/5×4.75 |
| Minimum wheel diameter | 17.0 inch |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
No vehicles are named for this kit. The rear axle has to be a Ford with an 8 inch or 9 inch small bearing axle flange, and the wheels must be five-lug with a 5×4.50/5×4.75 pattern.
Wheel design affects fit, so test the S135H template against your wheel before ordering. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The park brake shoe assembly is seated in the backing plate, so it goes on as part of the caliper mount. Park brake cables are not in the kit and must be acquired separately. Check the 17.0 inch minimum wheel diameter against your rims before mounting. Professional installation is the sensible route for a brake system of this kind.
What’s included
The kit covers the Grabber Blue S4 caliper, the 13.0 inch rotor, the park brake backing plate, and stainless braided hoses with hardware.
Not included: Park brake cables.
