I have a '97 2500 and pull about 10,000 lb. tag-a-long trailer. I have noticed that my overload springs are resting on the stops. I didn't realize that our springs are that weak. How hard are the springs to remove? Their is a shop in town that will re-arch them to factory specs and will add an extra leaf for $120. Is that a good price or should I do something else? any advice accepted.