Overview
Grabber Blue finishes the Baer Brakes S4 front brake system, part number 4261654GB. A 4-piston S4TL caliper clamps an 11 inch vented, slotted, drilled and zinc-plated rotor, and the system fits Ford and Mercury cars from 1970 to 1974 that have drum brake spindles.
The S4 is a scaled-down version of Baer’s larger brake systems, sized for wheels 15 inch in diameter or larger. Its parts are CNC machined in Phoenix, Arizona.
Key features
- Grabber Blue powder coated caliper with an S4TL top loaded housing
- One-piece 11 inch rotor, vented, slotted, drilled and zinc plated
- Hard anodized aluminum pistons, stainless steel abutments and noise suppression clips
- Dual seals for dust, weather and pressure, with a top load design that eases pad changes
- Billet aluminum hubs with premium bearings, Redline synthetic grease and billet aluminum dust caps
- Stainless steel braided DOT approved hoses, included with mounting brackets and hardware
- CNC machined from US sourced forged or billet aluminum, manufactured in Phoenix, Arizona
Pedal feel and fluid
A firm, consistent pedal is the first sign that a disc conversion is working correctly. A soft or sinking pedal usually points to air in the lines, a leaking fitting, or fluid that has absorbed moisture. Bleed the system thoroughly after installation and check the master cylinder level as the pads bed in.
Pad bedding also affects feel. Make a series of moderate stops to transfer an even layer of pad material to the rotor before any hard braking. Keep the brake fluid fresh on a regular schedule, and inspect the drum-to-disc transition at the rear for worn parts that can change pedal balance.
- Bleed the system after installation
- Bed in new pads with moderate stops
- Replace fluid on a regular service schedule
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4261654GB |
| UPC | 90127974698 |
| Sold as | Kit |
| Axle | Front |
| Caliper | S4TL, 4-piston, fixed, top loaded |
| Caliper color | Grabber Blue |
| Rotor diameter | 11.0 inch |
| Rotor type | 1-piece, vented, slotted, drilled, zinc plated |
| Rotor thickness | 1.02 |
| Minimum wheel diameter | 15.0 inch |
| Wheel bolt pattern | 5×4.50, 5 lug |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Brake hose | Steel braided, DOT approved |
| Disc brake pad FMSI number | 6070012 |
| Template | ST125A |
| Grade type | Performance |
| Emission code | 6 |
| Spindle requirement | OE drum brake spindles |
| Country of origin | USA |
Vehicle fitment
Fitment is based on the manufacturer list: 1970 Ford Fairlane, 1970 Ford Falcon, 1970 Mercury Cyclone, 1970 to 1974 Ford Maverick, 1970 to 1973 Ford Mustang, 1970 to 1971 Ford Torino, 1971 to 1974 Mercury Comet, 1970 to 1973 Mercury Cougar and 1970 to 1971 Mercury Montego, each with OE drum brake spindles.
Models and years outside these ranges, such as a 1969 Ford Mustang or a 1975 Ford Maverick, are not covered. The kit requires OE drum brake spindles at the front. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The hubs come with bearings already assembled, so the bearing set is part of the hub. Check the wheels against the ST125A template before mounting, because the minimum wheel diameter is 15.0 inch.
Have a qualified technician verify hose clearance and brake pedal firmness before the vehicle is driven.
What’s included
The kit includes the Grabber Blue S4TL caliper, the 11 inch rotor, billet aluminum hubs with bearings, mounting brackets, stainless steel braided hoses and hardware.
Not included: Wheels, which must have a minimum diameter of 15.0 inch.














