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Ford 73-84 F100, F150, Bronco Rear 13" Big Brake Kit

Thirteen inch rears. Four pistons. Seventeen inch wheels. Not every truck is on 18s. Plenty of good builds sit on 17 inch wheels and a 17 inch wheel is where most big brake plans quietly fall apart. This is the same Big Ford axle solution scaled to fit them. Wilwood FNSL 4-piston calipers on 13 inch drilled and slotted rotors; aluminum hats; 6061 radial brackets and laser cut brackets that bolt to the factory axle without a torch or a welder anywhere near it. The internal drum style parking brake comes with it; you keep a mechanical hold that works on a grade after the rotors have cooled. Measure the flange at the back of the drum before you order. Big Ford Old Style with a 2.36 inch offset on a bolt-in sealed bearing axle. If the tape says something else this is not your kit and we would rather tell you now.

  • Built around 17 inch wheels - the big brake answer for a truck that is not moving to 18s.
  • Bolt-on to the stock axle - radial and laser cut brackets locate on the factory flange with no modification.
  • Wilwood FNSL 4-piston - proportioned for the rear so the axle works without locking early.
  • Parking brake included - an internal drum style assembly rather than a lever that fades with the pads.
  • Drilled and slotted rotors - in the kit; not an option line at checkout.
  • A number you can measure - 2.36 inch flange offset tells you yes or no before you order.

Install Level: Advanced

Bolts up to the factory axle without modification.
Axle requirement: Big Ford Old Style flanges with a 2.36 inch offset; bolt-in sealed bearing axles only.
Does not fit tapered roller bearing axles unless converted to a sealed bearing.
Does not fit Ford 8.8 c-clip style axles.
Wheel requirement: fits inside most 17 inch wheels.

Little Shop MFG
SKU: LS-FB7379-RBBK-13-NoParkBreak-DrilledSlotted-RD ISBN: LS-FB7379-RBBK-13-NOPARKBREAK-DRILLEDSLOTTED-RD
$2,115.00
⚠️
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead. Learn more.
Ford 73-84 F100, F150, Bronco Rear 13" Big Brake Kit
From $2,115.00
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Overview
Specifications
Tech Resources
Compatibility

Big Ford Axle Brake Solution | 13" Disc System | 73-84 Applications

A 13" kit utilizing 4-piston calipers, aluminum hats, machined 6061 AL radial brackets, and laser cut brackets to bolt up to the factory axle without modification. Designed fit 73-84 Ford F100, F150 trucks and Bronco with Big Ford Old Style axle flanges and a 2.36" offset. This kit is designed and machined in-house. Includes drilled/slotted rotors and internal drum style parking brake assembly.

*Wheel size requirement: Fits inside most 17" wheels.

NOTE: Fits bolt-in style sealed bearing axles, not tapered roller bearing (unless it has been converted to a sealed bearing).

This kit DOES NOT fit Ford 8.8 c-clip style axles. If you have an axle with that style in your 80-96 F150/Bronco, see our Ford 80-96 F100, F150, Bronco Rear 14" Big Brake Kit.

Please verify your flange dimensions with the image below. This can be done without removing anything simply by measuring the flange at the back side of the drum. Even if your model is listed below, if it does not have the correct flange measurements then the kit will not fit.

big-ford-old-style-flange-with-.500-bolts.jpg

Rotor: 13 inch; drilled and slotted
Caliper: Wilwood FNSL 4-piston
Hats: aluminum
Brackets: machined 6061 aluminum radial brackets plus laser cut brackets
Parking brake: internal drum style assembly published as included
Axle flange: Big Ford Old Style with 2.36 inch offset
Bearing type: bolt-in style sealed bearing axles
Wheel clearance: fits inside most 17 inch wheels
Listed price 2115.00 USD
Variant count: 8 across hose and caliper color options
Fits 1973-84 Ford F100; F150 and Bronco with Big Ford Old Style axle flanges and a 2.36 inch offset as published in the body copy.
Fits bolt-in style sealed bearing axles; not tapered roller bearing axles unless converted.
Does not fit Ford 8.8 c-clip style axles.
Wheel requirement: fits inside most 17 inch wheels.

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