To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.
LT-A400F KING QUAD 2011 (L1) USA (E03) KINGQUAD KING-QUAD section with eighty-two Other schematic pages.
With forty-nine products listed, the SECONDARY DRIVE parts diagram contains the most products.