I just got some Roll Design a-arms off ebay (not Lobo II) and I need balljoints. Do any of you know what kind of balljoints they use? I know my JD Performance a-arms used balljoints off an old VW Transporter. But these Rolls look like they need a slightly bigger balljoint.

 

They are probably the ones with the grease zerk on top, if that is the case they are from a 79 ford courier truck.