tranny tunnel mods for Z'ed x-member
 

my blazer is a 4wd body on a 2wd frame, the Z is 3.5 inches, i know am already ahead having a 4wd body but how much modification will it require? any one with pics of one completed would help greatly!

sorry to make this a long post but one more question. the studs on the pass. side upper a-arm have come loose, can i tap them back in? should i weld them in? or should it just be taken to a shop and fixed???
thanks in advance