Rough Country 510.20 User Manual
92142000
80-96 F150 2 1/2” LIFT KIT INSTRUCTIONS
Rough Country recommends this system be installed by a certified technician. In addition to these instructions, professional knowledge of disassemble/reassembly procedures as well as post installation checks must be known. Attempts to
install this system without this knowledge and expertise may jeopardize the integrity and/or operating safety of the vehicle.
Please read instructions before beginning installation. Check the kit hardware against the parts list and kit content on
the back page of these instructions. Be sure you have all needed parts and know where they go.
With the installation of all lift kits and larger tires it is important to check the condition of your steering stabilizer. If the
stabilizer is worn or leaking it should be replaced. Steering stabilizers are designed to restrain “bum p steering” and front
end vibration, giving added life to tires, ball joints, and other steering components. A multiple stabilizer kit is recommended for vehicles equipped with a snow plow, winch, or larger tires
As a general rule, the taller a vehicle is, the easier it will roll. Offset, as much as possible, what is lost in rollover resistance by increasing tire track width. In other words, go "wide" as you go "tall." Many sportsmen remove their mud tires
after hunting season and install ones more appropriate for street driving; always use as wide a tire and wh eel combination as possible to enhance vehicle stability.
We strongly recommend, because of rollover possibility, that the vehicle be equipped with a functional roll-bar and cage
system. Seat belts and shoulder harnesses should be worn at all times. Avoid situations where a side rollover may occur
Generally, braking performance and capability are decreased when significantly larger/heavie r tires and wheels are
used. Take this into consideration while driving.
Do not add, alter, or fabricate any factory or after-market parts to increase vehicle height over the intended height of the
Rough Country product purchased. Mixing component brands is not recom mended.
Rough Country makes no claims regarding lifting devices and excludes any and all implied claims. We will not be responsible for any product that is altered. Most states have some type of law limiting vehicle height. The amount of lift
allowed, and how the lift may be achieved, varies greatly. It is the owner’s responsibility to check state and local laws to
ensure that their vehicle will be in compliance.
This suspension system was developed using a 32x 11.50x 15” tire, on an 8” wheel with a 3 5/8” backspacing. Before
installing other combinations, please consult your local tire and wheel specialist.
PRODUCT USE INFORMATION
The installation time for this system is approximately 8 hours.
INSTALLATION INSTRUCTIONS
1. If equipped with anti-say bar, disconnect front sway bar bolts on coil mounting seat. (You will reattach after installation without a need for modification).
2. Remove the brake caliper form the brake rotor and secure out of the way. If the stock rubber units are retained, they
must be in good condition; check for chafed spots, cracks and dry rot.
3. Put transmission in neutral. Place a floor jack under the outer ends of both axle halves and evenly raise vehicle approximately 12".
4. Place jack stands under frame rails approximately 4" behind radius arm brackets. Ease vehicle down onto stands.
Continue down with jacks until there is only a slight load on the coil springs. Put vehicle in park or gear, set emergency brake and chock rear wheels to prevent any possibility of movement.
5. Remove tires and shock absorbers.
6. If longer brake hoses are being used, disconnect the stock rubber hoses where they connect to the metal lines at the
frame rails. A piece of rubber tubing routed from the metal lines to a catch pan will eliminate a fluid mess. New hoses
are installed in a later step.
7. Remove upper spring retaining clip. Support axle with floor jack at this time. Avoid dropping the axle too far or the
axle shaft will disengage its splines.
8. Remove lower retaining nut and washer. Lower axle to loosen spring. Remove spring by pulling the top outward.
9. Install original shock behind the coil seat. This will hold the beam up while working on the piv ot end. Remove crossmember bolt on driver side beam. Unbolt and remove stock pivot point bracket.
10. Replace with Rough Country pivot bracket. This will be the larger of the two brackets in the kit. Using the two upper
bolt holes and temporarily using stock Ford bolts, attach bracket to cross member. Mark new Rough Country bracket
using existing holes in cross member as a guide. Remove and drill to 1/2" diameter. Refer to illustration #2. DO NOT
OVERLOOK THIS STEP!
11. Replace bracket using only the 4-1/2" x 1-1/2" bolts, washers, and locknuts provided in the kit. Do not use any of the
Ford stock bolts on this bracket. The stock bolts were used just to hold the bracket in place temporarily. tighten the
4-1/2" bolts at this time. (torque to 115 ft. lbs.) See Photo 1.
12. 10. Raise the pivot end of driver side beam into Rough Country bracket. Install re-using stock bolt, washers, and
nut. Tighten at this time (toque to 120-150 ft. lbs)
13. 11. Move on to passenger side, repeat steps 4 through 8.
14. Remove pivot bolt for passenger side beam. Mount passenger side bracket into cross member using 9/16" x 3-1/2"
bolt and 1-5/32" spacer. Refer to Photo 2 and Diagram 1. Measure over from stock pivot hole center 3-1/8” on
back side of cross member making sure to keep hole parallel to stock hole and keep the new pi vot hole directly below the stock pivot hole in the cross member. Drill a 9/16" hole and install the 9/16" x 1-1/2" bolt washer and locknut
provided. Raise beam and install the 9/16" x 3-1/2" bolt, washers, and locknut through pivot. Tighten the three 9/16"
bolts at this time. (torque to 115 ft. lbs.)
PHOTO 1
PHOTO 2
DIAGRAM 1
Passenger I-Beam Shown in new Bracket Driver I-Beam Shown in new Bracket
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