I had my first "Death Wobble" yesterday, actually it did it 3 times in about 100 miles. I thought I was going die the second time, I was on a bridge and about hit an 18 wheeler. I had to slow to about 20mph to get it to stop. It was VIOLENT.
I had a 2wd chevy truck that did it about 20 years ago, shocks fixed it.
This truck has ~24k miles on it and a leveling kit. When I put the leveling kit on ~10k miles ago, I noticed the shocks felt different, It's like they're extended too far and "out of their operating range".
I'm going to order some longer shocks and a dual stabilizer...
... Transmission is going out too... I love this truck