13x1.1" Rotor 4 Piston
Forged Aluminum Caliper Brake System
Disc brake conversion kit for 1964-73
Mustangs and other Fords utilizing the DRUM spindle.
Pictures show system mounted to
our optional Big Spindle (not included in this kit but highly recommended for
serious track cars).
Designed for
serious street cars and entry level to mid-range capable track cars, this
system fits under some 16" and most 17" wheels with a positive offset and
adequate spoke clearance. Please use the template below to check fitment
to your wheels. If your wheels don't have clearance to the spokes, use
part #
ST13X125-2PC-4P-ALUM
Features heavy duty
directional vane 13 x
1.1" rotors, stress flow forged aluminum calipers with 4
stainless steel pistons that accept .800" thick pads in a variety of compounds. Our
custom spindle bracket requires no modification to your DRUM spindles.
Please download
and use the wheel fitment template:

Fits 65-73
Mustangs, Falcons and other Fords that used the same spindles. Direct bolt on to 65-73 Mustang V8 OE
drum spindles (65-67 any spindle, 68-73 drum
version only). Retains OE track width and enables use of some 16"
and most 17" (or larger) wheels without spacers or modifications
on wheels with enough pad height (spoke clearance to caliper).
Kit includes:
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2 x Forged aluminum 4 piston
calipers, powder coated bright red or gloss black.
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2 x 13" x 1.1" heavy duty rotors with directional cooling vanes.
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2 x Hubs fitted with bearing races and standard length wheel studs (so you
can use closed end lug nuts). 3" long ARP studs and open ended
lug nuts also available.
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2 x Hub centric adapter shims.
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2 x Billet spindle/caliper mounting brackets. CAD designed and CNC machined.
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2 x Timken inner bearings.
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2 x Timken outer bearings.
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2 x Timken inner dust seals.
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2 x Stainless steel braided brake hoses complete with all adapters to
connect to caliper and stock hard lines.
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2 x Castle nuts (70-73 spindles
use nut and castle style nut retainer).
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2 x Cotter pins.
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2 x Dust caps.
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Grade 8 bolts and all the hardware to install the kit.
Optional components:
ARP 3" long wheel studs
Big spindle kit
All kits are custom built to your exact specifications. If you are in a
rush, please contact us to confirm current build time
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General
Specifications: |
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Wheel Size Required: |
Fits some 16" and most 17" & larger wheels
- please use template shown above |
| Axle: |
Front |
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Caliper
Specifications: |
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Description: |
Forged Aluminum 4 Piston |
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Type: |
Fixed |
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Number of Pistons: |
4 - Stainless |
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Piston Size: |
1.62" |
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Construction: |
Stress flow forged from premium grade
aluminum alloy billets. This process re-aligns the metals
internal grain structure to flow within the contour of the caliper
body. This process eliminates the stresses and interruptions
to the internal grain structure that occur when machining a straight
block. This results in a stronger and stiffer caliper. |
|
Pads: |
Continuing the
performance trend of this system, this caliper uses a huge pad.
Each pad is 0.800" thick, has an area of 8.2 square inches and
a volume of 4.9 cubic inches. That is almost as thick as a stock
Mustang rotor! Thick pads not only last a long time, they
offer insulation from the heat of the rotor transmitting to the
pistons and ultimately the fluid. Pad changes are super easy,
simply remove the center bridge bolt and pull out the pads.
Compound Information
Street:
- Medium friction, smooth engagement, low abrasion.
- Flat torque curve. Maintains a coefficient of friction
between .40 from cold peaking at .45 around 700F degrees.
- Beds quickly and provides fast response without excessive
abrasion.
Track:
- High friction, smooth initial response, low wear rate.
- Medium to high friction with good cold response.
- Smooth, predictable engagement.
- Long wearing pad in the middle temperature ranges with only
moderate wear in sustained high heat conditions.
- Peak coefficient of friction of .63 is reached at only 400F
degrees and is almost flat all the way to 1300F degrees.
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Finish: |
Powder coated bright red or gloss black
- other custom colors available. |
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Notes: |
Each caliper is
equipped with replaceable stainless steel bridge plates. These
plates eliminate the bridge wear caused by pad gouging and extend
the service life of the caliper body. The spring-loading action of
the plates also eliminates pad rattle and dampens the vibration
harmonics that contribute to squeal under braking. Other standard
features include high-temperature, square faced o-ring seals for
positive sealing, controlled piston retraction, and long service
life in high heat conditions. Stainless steel pistons are used to
resist corrosion and retard heat transfer from the pads. Two-piece
bleed screw assemblies provide long, reliable service life and are
easily replaced if necessary.
Caliper is mounted rearward of the
spindle upright (trailing). This position makes routing brake
duct hose in from the front of the car super easy.
Use 1-1/8" bore
master cylinder for perfect pedal height/pressure like #260-8556. |
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Rotor
Specifications: |
| Type: |
Heavy Duty directional
curved vane |
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Diameter: |
13" |
|
Thickness: |
1.1" |
|
Venting: |
Directionally vented vanes |
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Finish: |
Electro-coated hat and vanes to help resist corrosion |
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Caliper
mounting brackets: |
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Meticulous attention
to detail and advanced computer modeling techniques ensure perfect
fit. Our brackets are custom
CAD designed, CNC machined, then
plated for corrosion
protection. |
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