Installation Guide

Curt Manufacturing Inc., warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective,
Curt Manufacturing Inc., may repair or replace the product, at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of
this product voids the warranty. Curt Manufacturing Inc.'s liability is limited to repair or replacement of products found to be defective, and specifically excludes liability for incidental or
consequential loss or damage.
60644 SUBKIT
**DO NOT EXCEED RECOMMENDED VEHICLE TOWING WEIGHT!**
9. Raise the center section in to position between the cross arms. The ball cylinder that protrudes from the top of the center
section must fit through the hole in the truck bed. Using (4) 1/2" carriage bolts and flange nuts, attach the center section
to the square holes in the front crossarm. Next, attach the rear crossarm to the center section using (4) 1/2" carriage
bolts and flange nuts. (Finger tighten only) Finally, bolt the sideplates to the crossarms using 1/2" bolts, washers, and
flange nuts. On 2011 to current models the cylinder in the center section needs to be rotated towards the back of bed.
10. With the sideplates installed on both sides, torque all 3/4" fasteners to 380 ft.-lbs. and 1/2" fasteners to 110 ft.-lbs, in the
following order:
First: Torque the center section to the front and rear crossarms.
Second: Torque the side plates to the truck frame on both sides. (When torquing the U-bolts, make sure to tighten
them slowly alternating between the top and bottom of the U-bolt until equally tightened to maximum of 40 ft.-lbs.)
Third: Torque the side plates to the front and rear crossarms.
11. Re-attach exhaust hanger. On 2005 - current Ford Super Duty trucks with diesel engines the exhaust will have to be
lowered slightly. There are two types of factory tail pipe mounts on the Super Duty. One uses a single bolt through the side
of the frame while the other uses two bolts, one through the side of the frame and one through the bottom of the frame.
Both factory mounts can be lowered with the use of the supplied exhaust spacer mount. (Refer to FIGURE D and E
below) 2008 - current Ford Super Duty trucks with diesel engines will need the supplied exhaust spacer plate added
to the center exhaust hanger. (Refer to FIGURE F and G below)
2005 - CURRENT MODEL TRUCK WITH DIESEL ENGINE
On 2005 to current Ford Super Duty with a diesel engine, the exhaust will have to be lower at the rear exhaust bracket to
allow clearance for the Turnover Ball Gooseneck Hitch. See FIGURE D AND E.
FIGURE D (EXHAUST MOUNTS WITH ONE BOLT)
FIGURE E ( EXHAUST MOUNTS WITH TWO BOLTS)
2008 TO CURRENT MODEL TRUCK WITH DIESEL ENGINE
Re-positioning the exhaust at this location will allow adequate clearance around the exhaust pipe and improve ground
clearance at the end of the tail pipe. Use a deep well socket to loosen nuts on top of crossmember. Insert the supplied
exhaust spacer plate and tighten nuts. See FIGURE F AND G.
(REFER TO GOOSENECK HITCH INSTRUCTIONS FOR INSTALLATION AND OPERATING PROCEDURES)
Maintenance (Required every 30 days or prior to use)
1. Keep hitch ball lubricated regularly. Use silicone spray or equivalent to prevent wear and rust.
2. Keep hitch assembly free of dirt and other foreign debris.
3. Check for proper torque on all nuts and bolts before each use. Also check for excessive wear.
4. Check for ball wear before each use. (Note: Do not tow trailer with worn or damaged parts)
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99-CURRENT FORD 3/4 & 1 TON SUPER DUTY, 08' F-450
(WITH OR WITHOUT AFTERMARKET AIR BAG OVERLOADS)
Re-attach the factory tail pipe mount by
lowering and using a supplied 5/16"
carriage bolt and flange nut through the
lower square hole.
Use these two holes to attach the exhaust
spacer mount to the frame using a supplied
5/16" carriage bolt and the bolt removed earlier.
Place a supplied 5/16" carriage bolt through the
top square hole in the exhaust spacer mount and
attach to the frame. Secure with flange nut.
Re-attach the factory mount using the
bolts removed earlier in these two holes.
Remove from frame and place on the exhaust
spacer mount.
FIGURE F
FIGURE G
VEHICLE CROSSMEMBER
CENTER EXHAUST HANGER

SUPPLIED EXHAUST
SPACER PLATE

RATCHET WITH DEEP
WELL SOCKET