8.8 swap

Wow 17" Really!!!! so that helps me kinda breath a lil easier because if that's the case then that means I am within an inch per side which should be doable. then the only other thing that I would have to worry about is that I would have to have "custom" axles for this width instead of being able to use the stock short (27") OEM axles.
Yes I would think you'd have to use custom axles. The other issue is that's getting your spring perches out there to the tapered part of the tube so you'll have that to deal with as far as wheel back set, U bolts, etc.