First of all, as a suspension and alignment specialist, I would never wreck my truck by altering the ride height. Automotive marketing is so extremely competitive, if a manufacturer could offer a lowered car or a raised truck as an option, you can be sure they would do it. They know it can't be done without compromising braking ability, steering response, handling, and comfort. It can easily lead to you sitting in a courtroom when it was the other guy who ran the red light and caused the crash. I strongly recommend putting it back to the published legal ride height.
The rear leaf spring sits on top of that block which sits on top of the rear axle tube. That is all held together by a pair of u-bolts. Every time you accelerate or brake, the axle tube acts like a lever trying to twist those u-bolts. The truck originally came with about a four-inch block between the axle and spring. If there was an 8" block in there, that doubles the length of that lever and multiplies the forces on those u-bolts by four times. As a result, the u-bolts get stressed and they work loose. Dodge already gave you more power than you should be allowed to have, and that is going to make this problem happen again.
You'll also notice the original block has a hole where the bolt holding the leaves of the leaf spring together sits in. That prevents the axle tube from sliding forward and backward on the spring during acceleration and braking. Without that all being held tightly together, the axle is going to shift and cause the truck to be uncontrollable. I've done some rather dumb things with my Chrysler products over the years, but even I would not drive it this way except possibly to go very slowly down the shoulder of the road to get it home.
I have a friend with a body shop who specializes in rebuilding smashed one and two-year-old Dodge trucks. His projects are sold as soon as people find out he has one almost done, but every single one is exactly at the specified ride height. As the former suspension and alignment specialist at a very nice family-owned Chrysler dealership, I had the owner's blessings to refuse to work on any vehicle with altered ride height. We all knew we could become party to any lawsuit involving a vehicle with altered ride height, even if what I worked on had nothing to do with the suspension or steering systems. One of our insurance agents didn't even want us bringing them into the shop.
Friday, March 13th, 2015 AT 3:56 AM