Trail Master Suspension TM403N FORD F-150 4WD SUSPENSION LIFT KIT User Manual

Page 8

TM403N

Revised

12.5.13

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