I have one for a dual 4cyl cases and it's SWEEEET!! He's a great guy to deal with. I needed one for mine in a very short period of time (2days) and wanted it with a 5/8" dt lift and he had it to me in time. I was going to Big Dogs. HE said that 5/8" or so is about as much as you can go without a body lift, and he was right because my t-cases are almost hitting the body.