UnderCover Flex 04-06 (07 Classic) Silv/Sierra 5'9" Model FX11012 Hard Rolling This means they are capable

This means they are capable of towing virtually any trailer your class 5 trailer hitch and ball mount can tow

2" Shank Model 18410

CURT weight distribution replacement shanks are constructed from solid steel and shielded with a highly durable carbide black powder coat finish

3500 HD Extended Cab Model 481443-581444

UnderCover Flex 04-06 (07 Classic) Silv/Sierra 5'9" Model FX11012 Hard Rolling This means they are capableUnderCover Flex 04 06 (07 Classic) Silv Sierra 5'9" Model FX11012 Introducing the next generation of folding covers the UnderCover Flex folding cover. Flex combines the best of both worlds, the security of a hard locking cover and convenience of a soft roll up cover. Constructed from the best materials available, Flex will withstand the abuse Mother Nature throws at it and keep coming back for more. Low Profile Ultra low profile design rests inside