RAM 2013 Cargo Van Owner's Manual page 297

Once the crossbars are set into position, tighten the
thumb screws completely.
Tightening Crossbar
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 295
Stowing the Crossbars
Reverse the procedure to stow the crossbars, again,
taking care to keep hand clear of pivoting joint. Crossbars
are identical and can be stowed in either rail nest. Once
the crossbars are stowed, tighten the thumb screws
completely.
I n f o r m a t i o n P r o v i d e d b y :
3