Terry,
I was just getting ready to jump in on this but it took me a half an hour to get the picture up. Think GEOMETRY-although 'you' shouldn't have to, IF you used the top hole then the OEM upper arm is going to push/angle your pinion way to high! Impossible to line it up correctly even with adjustable lowers! IF you did the wheel would be sitting to far back in the wheel well to even work! The wheel hop must be spectacular if you used the upper hole! (Blaming this on the old manual is a righteous--Oh-CRAP!)
DV
PS Same rule applys for an 8.8 or 9" !