SuperSprings SuperSprings; Specialist; Provides From 800 lbs To 6000 lbs Of Additional Capacity; 47 in. L x 3 in. W x .447 in.; Never Exceed Gross Vehicle Weight Rating; NISSAN TITAN LE PRO-4X S SE SL SV XE 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 5.6L Flex VK56DE (5552cc) 5.6L VK56DE (5552cc) FLEX GAS with Adjustable Supersprings Supersprings SuperSprings - SSA20 SSA20 Leaf Spring Helper