Overview
The Baer Brakes 4261640GB is a Pro front disc brake kit with a six-piston Grabber Blue caliper, made for 1970–1973 Ford Mustang models and other listed Ford and Mercury cars that came with factory drum brake spindles. It converts the front drum setup to a vented 13 inch rotor and a fixed caliper.
The rotor is a one-piece slotted, drilled and zinc-plated integral hub design, and the kit uses the widely used D0731 pad type. The 13 inch Pro is designed to fit most wheels of 17 inch or larger, so confirm the 5×4.50 bolt pattern and 1/2-20 x 2.25 inch wheel studs before mounting.
Key features
- Six-piston caliper manufactured in Phoenix, Az, with a powder coated finish
- Caliper CNC machined from US sourced forged or billet aluminum
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual seals guard against dust, weather and pressure
- Rotors arrive with bearing races installed, premium bearings packed with Redline synthetic grease and new dust caps
Before you buy
A drum-to-disc front conversion changes more than the brakes. The new hub and rotor sit at a different position on the spindle, so wheel clearance, caliper position behind the spokes and steering knuckle geometry all need a check before the car returns to the road. Start by confirming the spindle is the factory drum type and that your intended wheel has room for the caliper body.
Brake fluid, lines and the master cylinder work together with a larger rotor, so inspect the hydraulic system while the front end is apart. Worn wheel bearings, leaking seals and rusted spindle surfaces are far easier to address during the swap than after the car is back on the road.
- Measure wheel clearance against the caliper before mounting tires
- Inspect the master cylinder and fluid condition during the swap
- Replace worn wheel bearings while the hub is off
- Check pedal feel after the first bleed
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4261640GB |
| UPC | 90127969243 |
| Caliper color | Grabber Blue |
| Caliper | 6P, six-piston, fixed |
| Caliper pistons | 6 |
| Rotor outside diameter | 13.0 inch |
| Rotor construction | Vented |
| Rotor type | 1-piece integral hub |
| Rotor surface | Slotted, drilled and zinc plated |
| Rotor thickness | 1.1 |
| Brake pad FMSI number | D0731 |
| Hose material | Steel braided |
| Brake hose DOT approved | Yes |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.50 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Minimum wheel diameter | 17.0 inch |
| Template | Q082H |
| Axle | Front |
| Fitment notes | w/OE drum brake spindles |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Kit |
Vehicle fitment
Listed vehicles with factory drum brake spindles: 1970 Ford Fairlane; 1970 Ford Falcon; 1970–1974 Ford Maverick; 1970–1973 Ford Mustang; 1970–1971 Ford Torino; 1971–1974 Mercury Comet; 1970–1973 Mercury Cougar; 1970 Mercury Cyclone; 1970–1971 Mercury Montego.
The kit is for factory drum brake spindles only, and it does not cover disc brake spindles or Mustang years outside 1970–1973. Verify your year, model and trim against the spindle type before ordering.
Installation notes
This kit is intended for cars still running factory drum brake spindles, so confirm the spindle design before starting. Baer cannot guarantee fit with every wheel style, so hold the Q082H template against your wheel to check clearance. Bleed the brakes once the stainless braided hoses are connected, and keep the car safely supported while working.
What’s included
The kit includes the six-piston Grabber Blue caliper, the 13 inch integral hub rotor with bearing races installed, premium bearings packed with Redline synthetic grease, new dust caps, all mounting brackets, stainless braided hoses and hardware.















