At the moment, my two main cameras are a Nikon F Photomic FTn (late "apollo" version - seen in my avatar) and a Nikon F2AS. I also have a Nikomat FTn that I use from time to time, and a Nikon F4s that needs a couple pieces to be useable (MS-21 insert for MB-21 and the DP-20). Both the F and F2 currently have motor drives on them. The F wears an F-36 with cordless pack that's missing the little contact plug, and the F2AS has an early MD-2/MB-1 drive on it. To make the drive lighter, I have lithium AA's installed.
Re: the nylon gear issue, it only affects later MD-2's, usually the ones with the black plastic anti-twist tabs. You'll probably be safe with a motor drive in the 400xxx-429xxx serial range. Mine is in the 423xxx serial range and works fine.