"Would a set of 37x13x17 Boggers fit with the 6" SAS and rear suspension lift? "
Yes 37" will fit very easily with that much lift.Just to say I'm running 3" lift and trimmed the sheet metal some and running 36" IROKS only problem is the front tires rubbing the springs, that will be cured when the wheel spacers show. My stock rear axles are holding up fine, will upgrade when I every brake it.