5)
Installation of Caliper Mounting Brackets
a)
Place the caliper mounting brackets against the spindle with the ears pointing out.
Align the large hole in the bracket with the top hole in the center of the spindle. The
brackets should be pointing back towards the firewall.
b)
Install the 5/8” x 1” bolt supplied in the upper hole
c)
Align the lower hole in the brakcet with the 1/2” hole in the spindle. Secure with the
1/2” x 2” bolt and nut supplied.
d)
Torque the upper 5/8” bolt to 100 ft/lbs and torque the 1/2” bolt to 75 ft/lbs.
6)
Installation of Rotors
a)
Pack the new wheel bearings with hi-temp wheel bearing grease. Place the inner
bearings into the backside of the rotors.
b)
Using a large socket or a block of wood, tap the new grease seals into the back of the
rotors.
c)
Slide the rotors into position on the spindles. Next, install the outer wheel bearing,
washer, and spindle nut.
d)
Torque the spindle nut to 12 ft/lbs while turning the rotor by hand to help seat the
bearings. If necessary, back the nut off no more than 1 flat to align the holes and
install the cotter pin.
e)
Install the grease cap.
7)
Preparation and Installation of calipers
a)
Prior to installing calipers, connect flex lines to calipers with hollow bolt and (2) copper
washers, one on top and one on the bottom. Don’t tighten bolt until after caliper is
mounted.
b)
Install new sleeves and bushings, provided, into all four ears of each caliper using
silicone grease or non-petroleum type grease for ease of installation.
c)
Install inboard brake pad with supplied support spring. Inboard pads must lay flat
against piston.
d)
Install outboard brake pad in the caliper with the ears of the pad over the ears of the
caliper and the bottom of the pads engaged in the recess of the caliper.
e)
Lubricate supplied caliper mounting bolts with silicone grease or other non-petroleum
lubricant.
f)
Position the caliper assembly over the rotor and line up the holes in the caliper ears with
the holes in the mounting bracket. (Bleeder screws must point up)
g)
Install mounting bolts, making sure that the ends of the bolts pass under the retaining
ears on the inboard pad. Push bolts through to engage the bushings of the outboard
caliper ears while at the same time threading the bolts into the mounting bracket.
Torque bolts to 25-30 ft/lbs.
h)
Clinch outboard pad to caliper casting so that the pad remains flush against the casting
without clearance or movement. (This will minimize brake squeak).
IF THE PAD DRAGS ON THE HUB OF THE ROTOR, YOU MAY NEED TO CLOSE
THE TABS ON THE PADS THAT GO OVER THE OUTBOARD SIDE OF THE
CALIPER
W123-ADS, -3ADS Revision 3
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