I found the culprit. Some way the inner clip on a u-joint cap came off and that cap exited the front yoke. Caused a massive imbalace and slop to where it killed the tailshaft housing. I reached up and grabbed the output shaft to spin it after pulling the housing off and it is visibly bent! Gotta pull the whole thing and tear it down to replace the output shaft!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
