I had a flat and some cut the air hose at the gass station so i had to buy three cans of tire foam. So at 45 MPH it death shook well it was bad my point is whats in your tire?

 

Thanks for all the input guys. It's going on the rack this weekend. If I can't determine from that it's going to the suspension shop. At least I will have taken care of many of the common issues in getting this resolved[8D]

 

Why didnt yoiu just use the spare? Tire sealant will ruin your tire. Once it is in the tire it cannot come out, they cannot repair the flat and as you found out it can throw off your tire balance. So now you need new tires.

 

It was a work truck and I had no spare tire and I was in some small town in Az population 7 people! LOL

 

LOL. Typical work truck with no spare!

 

nighttrain, try rotating your front drive shaft 180 degrees, could be resonance, see if the speed it happens at changes... and yeah, i know we have two threads going on here

 

roverguy, I removed my front drive shaft to replace the U-joints and have left it out while I located a CDL lever.

 

well i guess i was off... anyway, im assuming you have it in diff lock now then, was the vib there before you removed it?

 

yeah CDL engaged, vibration was there before but I dont think it was as bad. I'll have to see when I put the shaft back in.

 

Have them look at the Radius arm bushings and the Panhard rod bushings.