Take a look at the above photos and you can get an idea of what happens when you have a leaf spring mount fail. Your leaf springs are each holding up around 25% if your car's total weight. Add to this the stress of driving over bumps and potholes and you can imagine why one of these could break. When it does give way, your leaf spring has nowhere to go but up, that's because your car or truck just got a lot closer to the ground. In most vehicles, there will be somthing strong enough to keep the spring from shooting cleanly through its nearest barrier. In a car, that's your trunk. In a truck, as in the above pics, it's your bed. This truck suffered a spring perch failure while hauling a load of firewood, so there was plenty of weight in the bed of the truck to make things worse. The owner had a bedliner so hadn't really noticed how bad it was. When we showed him the leaf spring protruding into the bed his jaw dropped.
The owner of this truck opted to replace the spring shackle but decided to pound the bed of the truck back into place and weld it back together himself. Great way to save some cash! After all, it was a work truck and with the bedliner back in place you couldn't even see the repair.
The dealer quoted a ridiculous price for this job. The repair is so easy to do there's no reason to pay someone to do it for you. Follow these steps and you'll have a new leaf spring mount installed in no time.