The lift laws here go by GVWR Gross Vehicle Weight Rating, FIRST remember this, you measure to the bottom of the bumper, unless the bumper has been relocated or replaced with one different from the stock bumper then it measures to the frame rail horizontal crossmember. 15,000lbs-7,501 Front=30' Rear=31" 7,501-5,001 Front=29" Rear=30" Under5,000 Front=28" Rear 29"
Only a 2" difference between a Izuzu pickup and an F-350 Crew Cab, pretty smart law huh?
You have to hand it to those As*Wipes making the laws.