How would you do it? (Air bag ?'s)

the average thing is, 2500 firestones up front and 2600's out back, compressors the usual and reliable viair450s and a 8gallon 8 port tank for you.

as long as you don't have any holes in your bed, you can carry more wieght then a stock mazda. i've carried a golf cart in my truck. the rear wheels were barely on the tailgate. 85 psi in the rear and it road like a caddy.