Gotcha, I run chevy 63s but have been considering shortening my wheelbase when I go to link the back, Im at 128" right now.
I think I am into my front 60 $3400 and so far have yet to break any axle parts with 2yrs of wheeling on 40s. I like the superduty for the simplicity and the fact that you can get 1550 shafts from East coast for 400$ for a pair loaded ready to install. Plus any other parts you can get at a napa or autozone if you break on the trail vs having custom shafts and all that other fun stuff that goes along with a 609
I debated the 609 route but ended up building my tons for under 6gs front and rear so the price point is what kept me from doing it.
I coulda done weld on arms but at the time I was trying to do a protoytype high steer with SYN. When that didn't work out I opted for a Reid and WFO arm cause I didn't feel like pulling my axle apart to weld the high steer arms on (I daily the truck so I was trying to get it back on the road before the next wheeling trip). If I were to do it again I would probablly just get Artec weld on arms.