I'm wanting to convert a sedan to disk brake front, so am looking at getting some later model 120y (76 on) struts.

I'm sure l need to get the master cylinder, brake lines & maybe change the rear wheel cylinders.

But do l need the lower control arm & ball joint?? Or do l use the current BJ? What about the castor rod? Are the control arms the same except the bolt holes for the BJ are bigger??

Thanks
Andy