Well i bought my truck just like it is and havent lifted it or anything. But it does sit higher than factory height. It does have airbags on the back that are aired up. Without those being up the front sits higher....when aired up it sits more level. Not sure whats done to the front end to make it sit higher. Any ideas on what i can check for? Kinda wanting to know how big of tires i could run. Its got 285/75R16 (32.8x11.2 or something like that) and it has quite a bit of room left. Thanks in advance!