Not realy , it just goes on the intake manifold.
You can use any source for vacume from the intake, as long as you plug the one that has a hole right now in it.

It's not realy that hard to get to, you just have to use a mirror to see where it is.

"If i can't crawl over it, i'll fly over it"
rubo

'96 Amigo 4x4, 3.2L V6, 4L30E, D44 rear, SOA, 1" BL, undergoing surgery.
'00 Rodeo LS 4x4, 3.2L V6, OME 919 Springs, front cranked to match,1" BL, 265/70x16 Scorion A/T's.