CRANK WOBBLE!! Updated, found problem
Ati 91828e internal balance SB Mopar
I ordered mine directly from Ati as I took advantage of their custom options. I had them reduce the stock 2.25 pulley hub, to 2” as that’s the standard I.D. of a blower pulley. I also had them change the six 3/8”X16 bolt threads to 3/8”X24 as I run studs to hold the blower pulley.
918282E - Google Search