Owners manual
DODGE ’03 TO ‘12 2500 WITH OVERLOAD SPRINGS
3500 (REQUIRES 16301 BRACKET KIT)
CAUTION!
Read pages 2-3 of these instructions before starting installation. Failure to do so could result in significant vehicle damage!
IMPORTANT NOTES FOR THIS INSTALLATION:
1. Tube spacer and 4 ½” carriage bolt used to attach through rearward Bed Sill (Row 3).
2. **Rib neck bolts will need to be pulled through access holes in frame with supplied pull wire (see below).
3. Do not drill thru both wall of
frame. Drill only thru wall of
frame to which bracket is
mounted.
4. It is very important that
brackets in Row 2 are against
rear side of Bed Sill as shown.
Due to dimensional instability
in Bed Sill placement with the
Dodge truck, interference
could result when drilling in
Row 3. Observe caution note
below and double check all
areas prior to drilling.
5. Rear brackets can be
mounted to frame with (2)
bolts in any combination
of the three bracket holes.
6. *Due to tubular frames
having thinner walls than
previous C channel frames,
extra caution needs to be
used when mounting with the
optional welding.
CAUTION!
Check for obstructions before drilling. Failure to do so could result in damaged fuel or brake lines, structural members, etc.
CURT MANUFACTURING does its best to communicate tow vehicle manufacturer changes; however, it is ultimately the
responsibility of the installer to prevent damage due to installation.
R
O
W
1
R
O
W
2
R
O
W
3
R
O
W
4
Front
of
Vehicle
Measure from rear
edge of truck bed to
rear edge of mounting
rail
Rear Edge of
Truck Bed
Drill through
Bed Sill with
17/32" drill.
Open up hole
through truck
bed only with
1" dia. drill.
Drop tube
spacer through
hole in truck
bed to avoid
crushing Bed
Sill when
torquing 4 1/2"
carriage bolt.
Drill (2) center holes
shown in addition to
(8) holes for
CM-16100-TS. Install
1/2" carriage bolts,
u-shaped spacers
above or below bed
to fill bed corrugation,
and bolt plate below
bed with washer and
nut.
28 3/8" Long Box
26 5/16" Short Box
King Pin Centered
over Axle Center
Mounting Channel
Bed Sill
Long bracket
Inside frame
Use provided (CM-16100-TS) tube
spacer and 4 1/2" carriage bolts
to attach through Bed Sill
Drivers side of 2500 Ram long box shown
**Rearward access hole
(in top of frame)
*Optional weld
pattern
.25
2
.25 2
*
.25 1.5-3
.25 2
*
13
Front of
Vehicle