the bushings for the leaf springs and shackles are 2 different kits
the factory shackles already come with the rubber bushing and sleeve pressed in for you
poly urethane bushings are way better in regards to ride quality
energy suspension kit # 4.2133G/R are for the shackles only
energy suspension kit # 4.2154G/R are for the leaf springs only ( 2004 to 2011 model years only )
1998 to 2003 use a slightly smaller main eye bushing
Last edited by cheese_man; 08-06-2014 at 02:45 PM.