Today, I was taking the truck to 1) take a test drive and 2) to have my pinion angle corrected. I was going to 4wspecialties close to my house only 2 miles away and ended up having a tow truck bring me home. It was driving fine the 1st mile but I stopped at a light and when I took off very slowly I may add maybe 10 mph the truck shook very violently from left to right. It wouldn't stop until I completely stopped the truck. It felt as if the right tire was going to come or fall off. It is the first time really driving it since I swapped axles, installed a 6" lift, installed a used crossover steering, swapping the gear box, and installing new 37's on 16 rims. It also does not have the front driveshaft installed. The truck does need to have the pinion angle corrected in the rear, and it does not have shocks installed. People were driving by and asking if I knew that my truck was shaking violently and 2 other guys stopped to tell me that the right tire looked as if it were going to fall off. First test drive and 10 min. into it, a tow drive home. What do you guys think it could be? Thanks. Just when I thought I was going to drive this thing, things happen.