It's not the driveshaft. You have a bad transmission.
unbolt it at each of the universal joints
Tires or wheels out of balance? Bent wheel? Bent axle? Drive shaft out of balance? Frozen brake caliper?
It will cause both vibration and a knocking noise The vibration may feel like it is at the rear of of the SUV but be careful to have the drive shaft checked.
The drive shaft can vibrate due to damage or if the balancing weights fall off. If the weights are lost, you may take the shaft to a shop that has the equipment and have the shaft balanced again for typically under $50.
No, they are different.
See if your drive shaft going to front end is bent.
You bet it can. A bent or out of balance drive shaft will cause serious shaking. A defective U-Joint will also cause it to shake and is very dangerous.
Tires and/or wheels need to be balanced? Bent wheel? Rear wheel drive? Drive shaft may need to be balanced
Drive shafts are balanced to prevent vibration, if yours is doing it you need to check your universal joints, and whether the shaft has been dented or if one of the weights used to balance it has fallen off.
It could be from a worn out U-Joint on the drive shaft or it could be one or both of the rear wheels are out of balance.
Have the tires balanced and try it again. Also have the drive shaft checked.
Check your u joints on the drive shaft or the transmission mount..