Overview
The Baer Brakes 4262258MG is an SS4 Plus rear brake system kit in Monster Green for Ford 8.8 Inch C-Clip rear ends with a 2.5 inch axle standoff and a 5×4.50 five-lug bolt pattern. It uses a four-piston, floating S4 caliper clamping a 13 inch, two-piece slotted, drilled and zinc plated rotor with a billet aluminum hat. Wheels 17 inch or larger are required.
The backing plate mounts the caliper and also houses a one-piece park brake shoe assembly, so the parking brake function sits in the rear assembly. The rotors come pre-assembled with NAS high grade stainless hardware, and the DR1-C pad type is named. The rotor is listed at 0.81 thick, and the kit is made in the USA.
Key features
- Four-piston S4 caliper in a floating design
- Two-piece slotted, drilled, zinc plated rotor with billet aluminum hat
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips
- Dual dust, weather and pressure seals
- Powder coated caliper finish
- CNC machined from US-sourced forged or billet aluminum
- Stainless braided hoses and NAS stainless hardware included
Before you buy
Axle standoff and flange style decide whether a rear brake upgrade bolts up cleanly. Ford 8.8 C-clip ends vary in housing design, so measure the axle flange and confirm the standoff height matches your build before ordering. A two-piece rotor with a billet hat keeps the friction surface separate from the mounting hub, which helps when rotors are swapped during service. Choose pads to match how the vehicle is driven, since heat tolerance and noise differ across compounds.
Stock brake lines, master cylinder size and proportioning valve settings can affect pedal feel once a larger rotor and four-piston caliper are added. Review the whole hydraulic system rather than only the rear. Keep the park brake cable route clear of the exhaust and trailing arms.
- Check the axle flange before ordering
- Match pad compound to your driving
- Review brake lines and master cylinder sizing
- Re-torque lug nuts after the first drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262258MG |
| UPC | 90127944615 |
| Caliper | S4 |
| Caliper color | Monster Green |
| Caliper type | Floating |
| Piston quantity | 4 |
| Rotor outside diameter | 13.0 inch |
| Rotor construction | Vented, two-piece |
| Rotor thickness | 0.81 |
| Surface type | Slotted, drilled and zinc plated |
| Axle flange | Ford 8.8 Inch |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.50 |
| Minimum wheel diameter | 17.0 inch |
| Pad FMSI number | DR1-C |
| Brake hose DOT approved | Yes |
| Includes park brake | Yes |
| Includes park brake cables | No |
| Template | S135H |
| Emission code | 6 |
| Grade type | Performance |
| Country of origin | USA |
Vehicle fitment
The kit is built for Ford 8.8 Inch axles with a 2.5 inch axle standoff, which identifies the axle assembly rather than a specific vehicle. Check the year, model and trim against your vehicle before ordering.
Use the S135H template to check that the wheel you plan to run clears the caliper. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The minimum wheel diameter is 17.0 inch, so smaller wheels fall outside the listed range. The park brake shoe assembly is included but park brake cables are not, so plan the cable routing for your axle before assembly. Floating rear calipers and parking brake hardware are best handled by someone experienced with this type of system.
What’s included
The kit includes the S4 caliper, the 13 inch two-piece rotor with billet aluminum hat, the backing plate with its park brake shoe assembly, stainless braided hoses, and NAS stainless hardware.
Not included: park brake cables.
