I think I might have a more accurate description of what I feel on hard acceleration
In normal driving all feels normal except some mild engine surging. When I press the accelerator down and the chassis downshifts on a long hill climb the chassis drivetrain feels like a rotating front load clothes washer spinning quickly with one leg a bit short and out of balance. It is a very rapid shaking in the driveline. If I ease off the accelerator this shaking disappears
I feel pronounced rotating vibration in the drivetrain /chassis shakes like a clothes dryer or washer with a short leg in the spin cycle. It is a rapid "tapping" sensation or rapid shaking sensation
Any help is greatly appreciated Thanks
