distributor keep failing 3 in one year going on 4th

............Of course I know where the coil is,.................

His problem sounded like the engine was turning over, but not enough bump to get it to fire up.

So why would you jump on the coil?

Could be a LOT of things besides the coil and we don't even know, yet, whether this is points, Mopar, MSD, or what for ignition or whether it's a power/ wiring issue.