I took my truck into the stealer last week complaining that the left rear leaf spring is sitting to close to the over load leaf. They checked it and found the the right rear was twisted. they replaced the right side spring and did nothing with the left. They told me that the ride height was correct. Today i noticed that the truck is not sitting level. The truck is about 1 inch low on the left side. Dose any one know if there is a TSB out for leaf spring problems. Or is the left spring bad?