rear axle?

[Spblack]

Ive been exploring different axle options for my 59 apache. I know the s10 2x4 axle is only 54", but what if I wanted to run wider wheels? I could be wrong, but if I ran 9.5" rims with some fat tires and offset, this would get me pretty close to where it needs to be. Has anyone ran a 54" rear axle and did you run across any issues? please post pictures. My biggest concern now is mounting a 4 link and having enough room. if the frame is 34" wide, I believe ill have 5 or more inches on each side to mount a 4 link or whatever I decide for air bags in the rear. what are your guys thoughts?