SQUARE
BAR
ONLY
FACTORY
BAR
ONLY
Insert t-bolt
through bail.
INSTALL SECOND BIGSTACK
Repeat Steps 1 through 7 to
install second BigStack.
Instruction #1033411D-3/21
Snap bail to base,
around crossbar.
Snap bail to base,
around crossbar.
Rotate t-bolt.
90°
Install BigStacks so that
the lock housings face
same side of vehicle.
Install BigStacks so that
they are offset and fold
toward each other.
Upper notch for
Square Bars.
Choose best position
for most secure grip.
NOW COMPLETELY
TIGHTEN THE BIGSTACK
USING FIRM PRESSURE.