Help Needed Rear end clutch pack

[aldo_45030]

When i turn i fell shaking in my seat. I am on the third clutch pack assy since i have owned the truck . I am taking back to the dealer again. What gives?
i also feel a vibration under a towing load at around 1800-2000 rpm is this related?

 

[JLDickmon]

When i turn i fell shaking in my seat. I am on the third clutch pack assy since i have owned the truck . I am taking back to the dealer again. What gives?
i also feel a vibration under a towing load at around 1800-2000 rpm is this related?

could be, but I'd be pulling the driveshaft & checking U-joints first...

 

[PStroked444]

while under ther check the carrier bearing too. I had a vibration that was not fixed with the U-joints then I replaced the carrier and it stoped. JMHO