Chevrolet 2010 Silverado Owner's Manual page 21

3. Loosen the wing bolt (A), then slide the latch
outboard into the side rail. Tighten down the wing
bolt (A). Do this on both sides. Both latches must
remain engaged and the wing bolts tightened while
the cover is on the vehicle. Make sure by lifting up
on each end of the cover assembly.
4. Unbuckle both straps and roll the cover out. Make
sure that each bow falls in between the side rails.
If the bows do not fit between the side rails, verify
that the clamps are pushed fully outboard without
any gaps between the clamp pad and pickup box.
If additional clearance is required, remove the
clamp closest to the interference. Remove the
orange strip to allow access to the outer slot of the
upper clamp. Reinstall the clamp using the outer
groove of the upper clamp. If bows are too loose,
adjust the clamp closest to the bow with the
excessive clearance to the inner groove of the
upper clamp.
I n f o r ma t i o n P r o v i d e d b y : 3-11