Trail Master Suspension TM403N FORD F-150 4WD SUSPENSION LIFT KIT - Manual (Page 8)

TM403N
Revised
12.5.13
8
9. Install the rear differential drop bracket
(82-5539) to the differential using the
supplied 9/16” X 4” bolt, through the
mounting hole in the rear crossmember,
with the head facing the rear of the ve-
hicle. Leave the bolts loose. See Illus-
tration 4.
10. Install the front cross member (82-
TM241150) into original front A-arm
mounting locations, using the factory
bolts with the heads to the front, leave
loose. See Illustration 5. IMPOR-
TANT!: 2012 –Up models, the bottom
of the A-arm pocket may need to be
trimmed approximately 1/4” in order
to fully install the front crossmem-
ber.
11. To ensure proper rear crossmember
placement, test fit the driver side A-arm
in the crossmember mounting pockets.
Secure using the supplied cam bolts
(90-5533 rear and 90-5535 front), cam
eccentric (90-5532), 18mm washers
and nuts.
12. Once the A-Arm is securely in place,
tighten the previously installed 7/16”
hardware and the OE pass side cross-
member bolts and hardware. Remove
the A-Arm and cam bolts from the vehi-
cle.
13. Install the rear crossmember brace
(82-5516) to the rear crossmember us-
ing the 1/2” X 1 1/2” bolts and hard-
ware. Tighten the bolts. See Illustra-
tion 6.
14. Use the upper holes in the crossmem-
ber brace as a guide for drilling through
the frame. See Illustration 6.
15. Center punch and drill the holes using
a 1/2” drill bit. See Illustration 6.
16. Secure the upper holes in the rear
crossmember brace (82-5516) to the
frame using the 1/2” X 1 1/2” bolts and
nut plate (90-5692). See Illustration 6.
17. Secure the rear upper differential
mount to the frame using the previously
removed OE bolt. See Illustration 4.
18. Install the lower a-arms into the new
cross members with the supplied cam
Illustration 7
A-Arm Install
90-5535
Cam Bolt
90-5533
Cam Bolt
Lower
A-Arm
Illustration 8
Crossmember
Skid Plate Install
3/8” X 1
1/4” Bolt
3/8” X 1
1/4” Bolt
82-5517
Crossmember
Skid Plate
Rear
Crossmember
Front
Crossmember