Also, not only do you give up the benefit of 4wd, you will also give up the low range gearing, which I tend to use more in my DD than 4wd, now that I have a second rig for the trail.

While a locked rear w/a 2wd will give you added traction off road, w/o low range and a drive tire up front, you will have to hit everything at speed, which will likely lead to having to repair front suspension components more often than you do w/the 4x4.

I think one tow/recovery bill/yr would cost you a lot more than the money you would save in the lower fuel and maintenance costs of a 2wd than those of a 4wd. of a operating a 2wd o

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed