The Kyosho W-5061 parts bag contains the universal swing shaft as used on the front of the Lazer ZX and Lazer ZX-R. It can also be used on the Lazer ZX-Sport and on the rear of the Lazer ZX range.
The dogbone part is 62.5mm.
JC Racing Products makes a direct replacement part for the W-5061 universal joint. Click here to buy!