Just by chance when they were installing the u-joint maybe a couple needle bearings got buggered up? Just thinking out loud. Well, I would ponder that as well, except I had the driveshaft balanced and u joints put on a month after the vibration began immediately after the gear change. The ujoints and rebalance actually took 80% of the vibration away to its current level.
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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