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INSTRUCTIONS: 

1. Disconnect the negative terminal on the battery.  Jack up

the rear end of the vehicle and support the frame rails

with jack stands.  Supporting the rear differential remove

and discard the rear shocks.

  NEVER WORK UNDER

AN UNSUPPORTED VEHICLE!

2. Remove the u-bolts from truck and discard. Lower the

axle down slowly. Use care not to over extend the brake

hose

.

3. Locate the E-Brake cable mount on the driver side spring

perch.  Remove the bolt attaching the e-brake cable to the

mount and discard the hardware.

4. Remove the complete leaf spring packs from the truck

and discard. Save the factory hardware. 

If your truck is

equipped with a factory over load leaf on top of the

factory leaf spring pack you will NOT be able to reuse

it with this replacement leaf pack.

5. Locate the new FTS42000 rear leaf springs and install

into the factory position using factory hardware.  You

will use the supplied u-bolts and the factory shackle and

hanger hardware. Position the new supplied 2” block on

the axle with the factory block on top of it. Torque u-

bolts to 180 ft. lbs and leave the shackle and hanger bolts

loose at this time.

 2011-up use second photo below.

6. Locate the factory brake line mount on the driver side of the

axle. Remove the vent line from the bolt and remove the bolt.

Save hardware. Locate the supplied brake line bracket

FT30059 from the front box kit and attach the side with the

sleeve to the axle using the factory hardware. Using the

supplied 3/8” x 2” bolt, nut and washer, attach the brake line

to the other end of the bracket. Reattach vent line. SEE

PHOTO BELOW.

7. Locate the FT30240BK (driver) and FT30241BK (pass) Rear

Sway Bar Drop Brackets. Remove the factory sway bay end

links from the frame and save the hardware. Place the drop

bracket onto the frame so that the hole in the new bracket is

directly above the factory hole 

(the longer end of the

bracket goes upward and attaches to the frame)

.  Use a

paint pen or center punch to mark the center of the hole.

Using a drill, drill the new hole into the frame starting with a

smaller size bit and working up to the ½” size. Using a drill

with a 3/8” bit, drill the bottom hole through the new bracket

into the frame. Use the supplied 3/8” hardware and install the

bolts through the bracket into the frame, torque to 30 ft. lbs.

Install the end link into the bottom of the new drop bracket

with the factory hardware and torque to 50 ft. lbs. SEE

PHOTO BELOW.

Factory Block 

New 2” block 

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