If front calipers have been replaced with dual piston version see this diagram for brake parts.
Fig #
Part Number: KIT-15
FRONT BRAKE DUAL CALIPER CONVERSION KIT (LIST OF ITEMS WILL AUTO FILL IN CART)(SEE PRICE IN CART)
Part Number: U8633A-N
FRONT SPINDLE COTTER PIN 1/8in 2.25in OVERALL 1.75in USEABLE