I have a 2007 3/4 ton 4x4 5. 9 with a SMARTY JR. and G-56. I bought it in december with 134,000 miles and Now have 144,000. Everything on the truck looked stock and untouched besides a plastic "key" that disables the ignition of the truck that is near the OBD II. I added L. E. D. clearance...