Image Item No. Description By  61053u  Technic, Axle and Pin Connector 2 x 5 with 2 Ball Joint Sockets, Closed Sides (Undetermined Type) Catalog: Parts: Technic, Connector 1  60176  Technic, Axle Connector 2 x 3 with Ball Joint Socket - Closed Sides, Angled Forks with Closed Axle Holes Catalog: Parts: Technic, Connector 1  62520c01 (Inv)  Technic, Universal Joint 3L Catalog: Parts: Technic, Connector 2