Well it appears they are simple enough. But if any one size fits all, off the rack ones are available -- I haven't found one yet, although only started looking. It appears these would although in other thread i started it appears getting aftermarket intermittent wiper units to work on MoPar is difficult. Along w/ 4 way flasher, and FM converter, these were the only modern-world changes I wanted to make.
NAPA has it. Thanks!