Installation Guide

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PAGE 5
Front of truck
Row 1 Row 2 Row 3 Row 4
Rear edge of truck bed
Each base rail must have a bolt in
either of the marked holes. Check
for obstructions before drilling.
Rear edge of the truck bed to
the rear edge of the base rail.
30-15/16" long box
26-3/16" short box
VEHICLE-SPECIFIC INSTALLATION
Chevrolet Silverado Classic / GMC Sierra Classic
88 - 98 / 92 - 98 4-door / 1999 with tapered frame and red turn signals
IMPORTANT NOTE
Find parallel rows of bed sill spot welds in the bed of the truck. No
drilling should be done in the ~4" between parallel rows of spot welds
where the bed sill sits.
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.
Axle center
Short bracket
.25
2
.25 2
*
.25 1.5-3
.25 2
*
Long bracket
Mounting channel
King pin center - approx.
1-1/2" forward of axle center
Bed sill
Front of vehicle
* Optional weld pattern
Driver-side of
1/2-ton long box shown
*
*