Yeah, Atari also used that joystick on Rolling Thunder, and I believe Indiana Jones and the Temple of Doom.. I like the atari logo on the top. Hmm, maybe the Rolling Thunder joystick was a 4 way version..?
Right now I'm in the process of restoring an old Gauntlet machine. I want to get it as close to original as possible, so I picked up a nice set of those joysticks on rgvam a while back. They had seen little use, but were quite dirty. Right now I have taken a few of them apart for a cleaning/lube job. The joystick shaft is connected to a white plastic ball via a roll pin. This ball sits in a pocket, allowing limited motion. The only way to disassemble the sticks is through use of a roll pin punch, taking out the ball roll pin and the roll pin on the bottom of the shaft (the pins are of different sizes). My sticks happen to be in pretty good shape, so I'm going to clean them and then hit them with a dab of white lithium grease and reassemble.
A little while ago there was a guy selling a NOS ball for the internals of this joystick on Ebay. Not sure if he will be selling more of them.. I considered purchasing some plastic balls from McMaster to machine some new ones, but the part has so many holes/features in it that I decided that it wasn't worth the effort.
Like Paige said, they're good sticks when they are working right. I'm hoping mine will last for the remainder of the time I have this Gauntlet.. It gets a fair amount of play in my house, but nothing like the abuse it would have seen back in the 80s..
Have fun,
88mph