Installation Instructions:
Step 4:
Lift the plastic rail cap and locate backing plate
attachment holes with the Drill Guide.
Drill through the plastic rail cap with 7.0mm
(9/32") drill bit.
Repeat for all eight (8) backing plate locations.
Side Rail Installation:
Step 5: Driver side rail (A) has three (3) notches. Passenger side rail (B) has two (2) notches.
Install driver side rail (A) in the order shown. Hand-tighten
attachment bolt 1 and 2 in box nuts. Hand-tighten 3, 4, 5 and
6 into backing plates. Align the edge of the rail seal with the
top of the plastic trim cap as shown in figure A. Use T30
Torx to fully tighten bolts 3, 4, 5 and 6 followed by bolts 1 and
2 to 8.7 N-m. Repeat for passenger side rail (B).
Notch x3
Backing plates are installed on the back side of the sheet metal.
DO NOT install backing plates between plastic trim caps and sheet metal.
Driver Side
Cab End
Soft Tri Fold Tonneau Installation
ALL INFORMATION WITHIN
DATE
ABOVE BORDER TO BE PRINTED
EXACTLY AS SHOWN ON 8.5 x 11
WHITE 16 POUND NON-BOND
RECYCLABLE PAPER.
PRINT ON BOTH SIDES, EXCLUD-
ING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE
WITH GM SPECIFICATIONS.
Driver Side Rail (A)
Passenger Side
Tail End
REVISION
Holes For Backing Plates X4
on each side
Plastic Rail Cap
Passenger Side Rail (B)
REV 27JA18
PART NO.
INSTALLATION INSTRUCTIONS
AUTH
DR
TITLE
Soft Tri Fold Tonneau Installation
84177644
PART NO.
Drill Guide
Notch x2
Sheet
Sheet
Metal
Metal
Backing Plate
Seal
84177644
SHEET
Drill Guide
Plastic
Rail
Cap
Plastic
Trim
Cap
Figure A
2
9
SHEET
OF
2
9
OF