Transfer Case problems of the 2009 Dodge Ram 3500

Two issues: 1: knocking sound when turning at parking lot speeds. I've replaced bushings, linkages, ball joints, and nothing helped. I replaced wheel hub assemblies and the knocking is reduced, but not fixed. Shop owners that drive the same truck say they've spent thousands of dollars on their own vehicles and can't pinpoint the front end noises either. 2:vibration under the vehicle, from the transfer case, through the drive shaft, to the rear differential. Diesel shop says it's a common issue for the seals to get worn out due to imbalanced drive shaft. However, the drive shaft didn't lose any weights and was fine for the fist 90,000 miles. This is a very common issue with Dodge adam 2500 and 3500, according to the shop. At first I thought it was the tires, so I had them replaced and kept going to different shops, thinking that some may be better at balancing than others. There's a definite vibration between 45-55 mph and then it's really bad at 69-75+ mph. It's been getting worse for months and after replacing worn out seal on transfer case, it still isn't proper, but somewhat better. Shop said it's temporary and partial fix until I get the driveshaft balanced, but it has to be sent off for balancing and could take 3-4 days. I can't be without my truck for 3 days. I drove a Ford for 300,000 miles with no issues in the steering nor in the drivetrain. I drove a chevy for 200,000 miles with zero issues that this Dodge Ram 3500 has.