Owners manual
CHEVROLET/GMC 88-98, 92-98 4-DOOR, ’99 SILVERADO
SIERRA CLASSIC (WITH TAPERED FRAME) (RED TURN SIGNALS)
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. Find parallel rows of bed sill spot welds in bed of truck. No drilling should be done in the ~4” between parallel rows of spot welds
where the bed sill sits.
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
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W
4
Front of
Vehicle
Measure from rear
edge of truck bed to
rear edge of mounting
rail
Rear Edge of
Truck Bed
30 15/16" Long Box
26 3/16" Short Box
King Pin Center approximately
1 1/2" forward of Axle Center
Axle Center
Mounting Channel
Bed Sill
Long Bracket
Short Bracket
Drivers side 1/2 ton Long Box shown
*Optional weld pattern
.25
2
.25 2
*
.25 1.5-3
.25 2
*
4
Each mounting rail must have
a bolt in either of the marked
center holes. Check for
obstructions before drilling.
Front of
Vehicle