Installation Guide

CURTMFG.COM
•
NEED ASSISTANCE?
•
877.287.8 634
•
RA
•
PAGE 14
.25
2
.25 2
*
.25 1.5-3
.25 2
*
Axle center
Inside frame
VEHICLE-SPECIFIC INSTALLATION
Dodge 2500 / 3500 (with overload springs) 03 - 12
Requires #16301 bracket kit
WARNING
Read pages 2 - 4 of this installation manual before beginning the
installation. Failure to do so could result in significant vehicle damage.
Check for obstructions prior to drilling. Failure to do so could result in
damaged fuel or brake lines, structural members, etc.
CURT does its best to communicate tow vehicle manufacturer
changes. However, it is ultimately the responsibility of the installer
to prevent damage due to installation.
Long
bracket
Mounting channel
King pin centered over axle
Bed sill
Front of vehicle
* Optional weld pattern
Use the provided round tube
spacer and 4-1/2" carriage bolts
to attach through the bed sill
Front of truck
Row 1 Row 2 Row 3 Row 4
Rear edge of truck bed
Drill through the bed
sill with a 17/32" drill
bit. Open up the hole
through the truck
bed only with 1"
drill bit. Drop the
tube spacer through
the hole in the
truck bed when
torquing the 4-1/2"
carriage bolt to avoid
crushing the bed sill.
Rear edge of the truck bed to
the rear edge of the base rail.
28-3/8" long box
26-5/16" short box
Additional Notes
** The rib neck bolts will need to be
pulled through the access holes in
the frame with the provided fish wire.
It is very important that the brackets
in row 2 are against the rear side of
the bed sill, as shown. Due to the
dimensional instability in the bed
sill placement with the Dodge truck,
interference could result when drilling
in row 3. Observe the warning note
above and double check all areas
prior to drilling.
The rear brackets can be mounted
to the frame with two bolts in any
combination of the three bracket holes.
* Due to the tubular frames having
thinner walls than the previous
C-channel frames, extra caution
needs to be used when mounting
with the optional welding.
IMPORTANT NOTES
Do not drill through both walls of the frame. Drill
only through the wall to which the bracket is mounted.
Tube spacer and 4-1/2" carriage bolt are used
to attach through the rearward bed sill, row 3.
Notes continued in the illustration below
Drill the two center holes shown
in addition to eight holes for the
round tube spacer. Install 1/2"
carriage bolts, U-shaped spacers
above or below the bed to fill the
bed corrugation, and bolt plate
below the bed with washer and nut.
*
*
**Rearward access hole in the bottom of the frame
Driver-side of 2500
Ram long box shown