We thought we were being all slick because we showed up with a T&T truss on our rear axle already. There were numerous problems in addition to the truss being installed incorrectly, but fortunately that didn’t change the quoted price for parts. Even though we thought we were saving time and money, T&T knew that the existing truss would need to come off to weld on the coil conversion truss. The coil springs mount more inboard than the leaf springs did and the upper control arms attach to the axle above the pumpkin. Once the old truss was off, it was easy to see our rear axle was bent. So before welding the new one on, T&T uses this tried-and-true hydraulic straightening technique.