#67721 - 39T PULLEY (Pro Spec Ball Diff)

Spare part for #67720 PRO SPEC BALL DIFF COMPLETE SET Other spares for #67720 include: #67723 CUP JOINT (POM/Pro Spec Ball Diff) #67725 DIFF SCREW SET (Pro Spec Ball Diff) Optional for #67720: #67724 CUP JOINT (Aluminum/Pro Spec Ball Diff)