Originally Posted by
DmaxMaverick
Spring height concerns should only be addressed when the truck is on a level surface. On an old(er)/worn-in truck, the front end Z-height should only be measured while the rear frame is suspended/supported at a specific height to compensate for worn/worn-in rear springs. Once the front is correct, then the rear can be measured. Do not expect it to remain in a similar appearance when parked on non-level ground. With a relatively high CG (Center of Gravity), it doesn't take much of a gradient to cause load differentials on the suspension, and cargo, fuel and accessory loading can affect that, as well. Simply, on a truck with thousands of miles on it (especially loaded/towing), if it's close, it's likely OK.