Sfbd info needed

So I'm gathering info on doin a sfbd. And I'm gonna cut the tops off the stock rails and slide my 2x3 into it an weld it back up then do a back half. So I need to know some things I can expect on this. Like body mounts and such. I know I'll have to raise the tranny tunnel. Will I have to trim things under the cab to get it down. And how much of a body drop to the rockers is it on yotas I've heard 3.5"-4" and it's a 91

Edited: 3/2/2011 10:36:57 PM by BagD72Chevy

I bodydropped mine less than 3" to the rocker. Don't remember the exact number. maybe 2.75?? I went traditional.

Heres the link to my build thread.
I hope this helps you out,
Good luck wtih your project
Pete

http://www.streetsource.com/forum/106153_1_Under-Construction-Not-Forgotten.html