Low Rpm Misfire vibration and weird *** rattling noise

Broken flex plate or loose flex plate bolts maybe.
hmm i hope not i just put the transmission back together with new bolts, i noticed on deceleration the rear pumpkin yoke would clunk, like every time, imm going to remove the drive shaft and inspect for yoke flange play at the pumpkin, i also have another set of gear i can swap to eliminate the gear s as a issue but damn i love those 3.91s lol