Hellwig 7678 User Manual

559-734-7451 800-367-5480 FAX [phone]

INSTALLATION INSTRUCTIONS

Rear Stabilizer Bar

2WD & 4WD F350 SUPER DUTYDUALLY

Thank you for purchasing aquality Hellwig Product.

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7678 ( R-7678 ) 08/10/05

559-734-7451 800-367-5480 FAX [phone]

INSTALLATION INSTRUCTIONS

Rear Stabilizer Bar

2005 2WD & 4WD F250-F350 SUPER DUTY EXCEPT DUALWHEELS

Thank you for purchasing a quality Hellwig Product.

TORQUETABLE

BOLT SIZE: 3/8” = 20-30 ft. lbs. – 7/16” = 35-45 ft. lbs. – ½” = 50-70 ft. lbs. – 9/16” = 70-90 ft. lbs.

SAFETY: BEFORE STARTING YOUR INSTALLATION,BE SURE TO SET PARKINGBRAKE AND CHOCK THE WHEELS.
NOTE: TO EASE INSTALLATION AND TOPROPERLYADJUST BAR, THE WEIGHT OF THE VEHICLEMUSTBEON THE SUSPEN-

SION, AS IF DRIVING DOWNTHEROAD. DO NOT RAISE THE VEHICLEBY FRAME.

NOTE: THIS UNIT IS DESIGNED TO REPLACE THEFACTORY INSTALLED REAR ANTI-SWAY BAR OR AS ANADDITION IF THE

REAR ANTI-SWAY IS NOT FACTORY SUPPLIED.

NOTE: THIS KIT INCLUDES LOCK NUTS WHICH REQUIRE TIGHTENING WITH A WRENCH AFTER BEINGSTARTED BY HAND.

1. Remove the factory installed rear anti-sway bar (if equipped) and all factory supplied hardware.

2. Locate the sway bar mounts on the differential housing at each side near the axle tubes.

3. Place the D-shaped poly-bushings onto the straight areas of the bar on each side of the center clearance hump. Place the U­plates over the bushings on the bar, position the U-plates and poly-bushings in the same location as the sway bar mounts. To
avoid any possible bushing noise, apply a thin layer grease to the inside of the bushings ( automotive grease can be used ).

4. Disconnect the emergencycable bracket located on the passenger side shock mount. Save bolt to reattach the bracket later.
Move emergency brake cable out of the way to ease sway bar installation.

5. Place the bar with the bushings and U-plates up over the top of the differential housing. Align the bushings and U-plates so
that they align with the mounts on the differential. Attach U-Plates using the factory bolts. Leave loose at this time to

allow for adjustment later.

6. Locate the end links and assemble with the poly bushings as in photo (3). Insert the hour glass poly bushings through the
welded ends of the end links. Insert the steel sleeves through the hour glass poly bushings. ( To ease installation lightly
grease the steel sleeve and the hour glass bushing before assembling ).

7. Attach the end links to the frame rail as shown in photo three (3) using a thick washer next to the bolt head and the nut.
Install jamnut and hex nut on end link in position shown in photo three (3).

8. Raise the arms of the sway bar and install the end link bushings on the arms of the sway bar as shown in the photos with the
locknut on the bottom of the end link. Tighten the nuts until the poly bushings start to bulge. Do not over tighten or dam­age can occur to the poly bushings.

9. Align the bar to be as centered on the differential as possible , and so that the arms are as level as possible. Move the bar
axle, axle mounting hardware and the frame brackets so the bar is aligned properly. The bar should have clearance on all
undercarriage components. Tighten all of the mounting hardware to the specified rates. Be sure to move any lines, wires or
hoses on the axle or the inside of the frame to avoid any damage. Double nut the axle U-bolts.

10. Reattach emergencybrake cable bracket.

11. Bounce the vehicle checking for clearance on all undercarriage components shocks, exhaust etc… test drive the vehicle and
recheck your installation. Recheck periodically on a regular basis thereafter.

ATTENTION INSTALLER: BE SURE THE CUSTOMERRECEIVES THIS INSTRUCTION SHEET, ALLWARNING

AND NOTE CARDSANDTHE WARRANTY FORM.

7678 ( R-7678 ) 08/10/05