Prevent front driveline damage on your lifted truck with the BDS driveshaft boot extension compatible with Chevy Silverado,GMC Sierra 2500HD,3500HD (2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010). HD factory front driveshaft boot is made of a stiff rubber that gets less pliable as it ages and is exposed to the elements. With ample drive shaft slip available we are able to utilize the factory front driveshafts in our kits without lengthening. The new boot extension allows for the factory boot to retain its original running length after the shaft slip moves out about 1" to compensate for the new front differential position after the lift is installed.