I'm a visual guy, can a couple of you folks with full-width axles send some clean front and rear pics of your rigs with 37" or better tires? What backspacing are you running? @Mace?
I have the Dana 60 rear, so all I need to locate is a Passenger side drop D60 for the front.
Front is a widened FJ60 axle. If I remember correctly it was around 63" and 5.5" backspaxing. I have older pics somewhere when it was prettier but with fj40 axles and 2" spacers.