Interesting parts search factoids….Rock Auto lists only the non-vac version of this dizzy for the earliest S10s. (They consider 82 the first year for the S10).
However….if you look at that eBay listing that Jerry attached, and search for one of those vehicle applications (I used the early Buick) you can find the vac advance version. “Autoline D2100” seems to be a number that works. And then if you click on the item detail you get a bunch of alternate part numbers that might be of some use.
