Tunnel hump help

[Srubydo1986]

ok some of u may have seen my project that im doing for u that havent here you go. http://67-72chevytrucks.com/vboard/s...17#post2007117

My problem is this the brown truck is a 2wd drive truck and im making it a 4x4 does the tunnel have to be changed or can i just cut a hole in my tunnel and bolt in the shift for the t case. Heres a picture of the floor lik i have that i borrowed form Rc 415.



If i do have to change it can i take the tunnel out of my donor manual 4x4 truck and cut and weld it in or should i look for a auto 4x4 tunnel so the carpet will fit back in the truck. Or can i just do a body lift and if so how tall do i have to go.

Thx this will solve a big headache iv had


Also what else will i need in brackets that the manual and the 2wd auto doesnt have. Hint: the brown truck was a 2wd th350 it will be a 700r4 4x4 and yes i do have that at least ( has about 100 miles on the tranny)