84 245, 390k-ish, B23F w/AW70 trans. I've gone through 3 starter motors in 4 months, Because of the COVID that isn't but a thousand miles or so. The first 2 were from the O'Reilly's, the second one was a pick & pull part that I took to a rebuild service that I know to be reliable, before installing. On advice from a fellow mechanic I checked the ground cable (it got pretty hot when I was trying to get it to start with the second starter) and while it wasn't in great condition I cut off the end and installed a new lug that gripped the whole wire. Is there something that an old, super-annuated, car could have that would cause starter motor failure?
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