Ranger Clone - 2003 Mazda B2300 125,000k 2.3L

Bought the truck off Craigslist with a messed up slave cylinder about 6 months ago. I bought a clutch kit which included everything: Master cylinder, self-adjusting slave cylinder (the kind with the blue plastic on it), flywheel, and self-adjusting clutch.

After installation and then first test ride, come to find out the 2nd gear synchro was trashed. No way I coulda known that unless I fixed it and got it running down the road. At any rate, the vehicle is driveable, you just have to mostly go from 1st to 3rd gear skipping 2nd gear to drive. It's not my main vehicle so it been ok to drive occaisionally. Well my main vehicle messed up so I've been driving the B2300 a lot lately, and in order to drive it you have to do a lot a clutching some times to keep from laboring the engine to much going from 1st to 3rd.

Now a problem has cropped up. The "self-adjusting" SLAVE cylinder is sticking IN sometimes. Like, the pedal comes back fine, but the slave cylinder itself sticks in. It's not slippage because of wear on the friction disk. I have to "pop" the clutch in and out real fast to get the slave unstuck. It "feels" like slippage but I've only put like 2000k on this disk. There's no way. Heavy clutching or not. Definitely the "self-adjusting" slave cylinder.

I'm about to order a new slave cylinder off Rock Auto and this time I'm getting a NON-adjusting slave cylinder like the one I got on my Ranger and get rid of the self-adjusting crap slave cylinder. I figure while I got the trans off I might as well replace the friction disk while I'm at it with no need to replace the pressure plate (only 2000k on it). So I'm gonna order the non-self adjusting slave cylinder and the friction disk cause the fiction disk is fairly cheap.

Now... in addition to the self-adjusting slave cylinder, I have have a self adjusting clutch kit (pressure plate and disk). So I'm trying to order the right friction disk for it. Rock Auto only has 2 brand choices for the friction disks. And one of them details "self adjusting" for the friction disk and the other says nothing about it. I'm pretty the "self-adjusting" part of a clutch is just in the pressure plate itself and has nothing to do with the actual friction disk. I have to compress the springs and slide the retainer catch over to get the trans back on and that's all on the pressure plate.

Finally my question. Can I order just any friction disk for the self-adjusting pressure plate? Or do they sell specific friction disks for self-adjusting pressure plates that I would need to order?

To my knowledge, a clutch friction disk has nothing different because it is used in a particular style pressure plate. IOW, how can a plain disk, with no moving parts, be different? The only thing that came to mind was the thickness of the friction material.
A disk for a self-adjusting plate could be thicker, to make use of the extra adjustment possible without user intervention. Other than that, bupkis.
tom