Do you still have the threaded part that is swedged to the cable? If so, you should be able to get the ball socket w/ball at an industrial hardware store or NAPA......that's where I get 'em.....
I dont see a part number in my Lokar book, so it may not be an actual part number. I'm sure any rod/speed shop you go to would be able to get you one.
Lokar has buckets full of this stuff. I imagine a call to them would result in one being tossed into an envelope & sent your way. JH