I received the cable ends from RCR a couple of weeks ago. One of the ends fit fine (the one that snaps over the ball joint), but the other was a rod end that fit fine over the post, but was designed for a 10mm pushrod end.
As the pushrods are 1/4-28, the 10mm size was way too large to fit.
I emailed RCR to ask if this is the correct end, or if some kind of adapter was recommended. A week later, they replied with the contact number of their supplier and suggested I contact him directly to resolve the problem.
I was concerned that this would result in further delays. Fortunately, a friend came to the rescue with the suggestion to drill the center of a 10mm bolt and tap it for 1/4-28, thereby making an adapter. This worked great and the cables are now connected.