Installing 1999-2001 Mustang Dual Piston calipers on Older Fords
by Earl Hayes
Pictures at bottom of this page
To do this conversion I am using Granada spindles.
It is quit possible it
may be easier to
use your original spindles.
A 1/4” or 5/16” steel plate will be needed to
I would only use grade 5 or better bolts for mounting.
Anyone that has
good common sense and some basic tools like a drill press and a welder can
don’t have them, you can take measurements easily enough and have them
machine shop regardless of what spindle you use.
To use the Granada
is a lot easier if the spindle is off of the car as you can see in the
caliper mount is held on by 2 bolts. Remove it because you won’t need it
the rotor mounted on the spindle you will see the two bolt holes from
caliper mount was.
1 on the top facing towards the rear of the spindle and
on the bottom
facing the back of the rotor.
With the pads installed in the Mustang
bracket, slip the caliper over the rotor.
You may want to shoot some
compressed air into
the brake hose hole to snug the caliper up on the rotor.
on the spindle where it matches the hole on the caliper mounting bracket.
You will need a
spacer between them.
It measures 7/8” thick. You can make it out of a
piece of 1 1/4
round stock and drill a 15/32 hole through it.
The mounting bracket uses
which I can’t remember the exact size.
Length is 1 1/2” long on the lower
and 1” long on
With the spacer in place (you will need to hold it ) install
bolt and lock
washer snug enough to where you can still move the caliper but is seated
Position the caliper on the rotor where it is square top and bottom.
sure the distance
between the caliper mount and the edge of the rotor is the same on the top
Tighten the lower bolt down. Now you can now see that an “L” bracket is
required on the
top. The bolt holes are somewhat offset.
Use 1/4” steel to make the
With the “L”
bracket about 2” long, hold it in place and mark through the spindle where
it will need to
The hole needs to be 1/2”. After doing that, take a 1/2” bolt
1/2” long and
locknut (or weld a nut to the inside of the bracket) and install the
will allow you to figure out where the other hole will need to be drilled
bolt the “L”
bracket to the caliper.
A little guesswork is needed here. After that is
done and all of the
bolts are installed and tightened,
re check all of your clearances and
sure the rotor
spins freely and everything is square.
While spinning the rotor, shoot
compressed air into
again and you will see any problems that may occur.
measurements I gave
are extremely close but it doesn't hurt to double check.
As I stated, use
grade 5 or better
I always use good lockwashers and Loctite. So should you.
calipers on all 4 corners.
The master cyl I use is an aluminum unit for a
You may want to use an adjustable proportioning valve if running disc’s on
all 4 corners.
Please don't Email me on this tip because I don't have anymore info.
Click Here for a Drawing of Brackets
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