My problem is not the shaking caused by anything in the running gear. My issue on my 6.2L 2018 8 speed transmission Silverado is predominantly when running in drive and it drops the motor to V4 from V8 and under torque it will shake you teeth out until is bangs it way back to V8 mode. The GM bulletin fix of changing the Transmission filters and fluid did not work. Applied the bulletin at 42K miles and it has had no effect on this issue. Yes, I can achieve some improvement by shifting the vehicle into M from D and selecting M7 as the as the gear and this prevents the truck from shifting to M8 and from shifting to V4 from V8. It still may shift ruff in the lower gears, but the issue is really when it is trying to run in V4 mode. Noone seems to address this issue specifically. They are talking about changing and balancing tires and all those things, but it is not my problem.
