Horizon Global PRO Serie Manuel D'instructions page 57

TOOLS
1/8" drill
17/32" drill
1" drill (Some Dodge applications only)
1. The following instructions should be used to mount the fifth wheel. Care and attention to detail will ensure a quick
quality installation. Check parts against parts list to become familiar with parts in kit. (See Fig. 1)
2. Raise rear of truck high enough to allow jack stands to be placed under rear spring hanger bracket of truck. This will
provide maximum room to install the fifth wheel brackets.
If the truck is raised, be sure that the truck is properly blocked and restrained to prevent
the truck from falling. Failure to do so may result in the truck suddenly falling, causing
death or serious injury.
3. Do not install mounting rails over plastic bed liners. Plastic bed liners must be cut out of the way. Base rails may be
installed on spray in liner. Note: Consult installer for recommended curing time.
4. Use only Horizon Global America Inc. supplied bolts, nuts, and washers to install this kit. All bolts are Grade 5 and
nuts are Grade 5 unless specified otherwise.
5. Specific instructions for most commonly used vehicles are included. Each frame bracket must be bolted to the
vehicle frame with two bolts, unless optional weld is used.
These instructions are guidelines only. Actual installation is the responsibility of the
installer and the owner. Always measure truck and trailer before installing hitch to be
sure that there is clearance at the cab and at the bumper to allow for turns.
To prevent the trailer from hitting the cab with the trailer turned 90° , the center of the hitch should be at least 52" from
the back of the cab when using a long bed truck. (Actual distance required will depend on trailer width and king pin
location.) Short bed (Minimum 38" from back cab to axle center line) trucks require a minimum of a 13" extended pin
box or a Reese SIDEWINDER
ATTEMPT TO TOW WITH A TRUCK HAVING LESS THAN A 6' BED WITHOUT A REESE SIDEWINDER
INSTALLED ON THE TRAILER.
6. Measurements are given from Rear Edge of truck bed to rear edge of the base rail closest to the Rear Edge of truck
for most vehicle applications (See Fig. 2).
7. Center hitch between fender wells and make sure rails are square. Adjust position of rails until both diagonal
measurements are the same. This should allow installation of a gooseneck or other fifth wheels to these rails
(See Fig. 2).
Check for obstructions before drilling. Failure to do so could result in damaged fuel or
brake lines, structural members, etc. Horizon Global America Inc. does its best to
communicate tow vehicle manufacturer changes; however, it is ultimately the
responsibility of the installer to prevent damage due to installation.
It is important that 17/32" drill be used for holes in chassis frame as rib neck bolts
may break if too small a hole is used and neck may not grip if too large a hole is used.
8. Drill 10 holes identified in Fig. 2. (Hole location will vary for individual vehicle applications.) Drill all holes with 1/8"
drill, and then temporarily position frame brackets to frame and align with pilot hole to ensure the brackets and holes in
the bed align without any interference with any structure below the truck bed. If holes do not align with the brackets and
rails, restart installation at step 7. Enlarge the pilot holes with a 17/32" drill. Install 1/2" carriage bolts into holes. Install
5/16" thick slotted spacer above or below bed to fill corrugations in bed floor. NOTE: For Toyota 2000-2006 Tundra
application, part #58197 spacer kit is required. Stack (1) 3/16" and (1) 5/16" thick slotted spacer to avoid
crushing of truck bed.
©
2006,2007,2008,2009,2010,2011,2012,2013, 2014, 2017 Horizon Global America Inc .
GENERAL INSTRUCTIONS FOR 30035 BASE RAIL INSTALLATION
3/4" Socket & Open End Wrench
100 lb-ft Torque Wrench
"C" Clamps
WARNING:
Pinbox for regular maneuvers and 52" does not apply. DO NOT INSTALL ON OR
TM
CAUTION:
CAUTION:
SHEET 2 0F 19
Made in China
CAUTION:
30035IN
TM PINBOX
1/31/2017 Rev. U