FWIW my buddy had a vibration like you describe in his 66 fairlane with 4 speed, pulled apart the trans and had 2 bad bearings along with a bad trans mount that made it worse. Yeah, wouldn't surprise me if I have similar with my tired transmission. The trans mount is fairly fresh, but I have an extra poly bushing that I might try.
2016 Ram 1500 Crew Cab: 5.7, 65RFE, 4.56 gears with locker, Hemifever tuned, AFE intake, 87mm throttle body, JBA headers, 3" Flowmaster exhaust, split to dual 2.5" exits. 13.57 best ET so far.
Searching for new A or B Body Project!
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