Not unless you shorten the body. The main disadvantage is size, not IFS. The smaller 80 will always have the advantage.
- Disagree, but that's for another thread. Sure the size is bad, but to use your logic about weight (below), hey, it's only a couple of inches! IFS is by far the limiting factor.
I must call you on a few rediculous arguments you made on the "comments":
Who are you calling black, Mr. Pot? (Or is that just what you've been smoking?)
More powerful engine with slightly better fuel economy - But uses a belt, not a chain...
***So what?
- Oh man, if I gotta explain this... John, do you understand that a belt is made of rubber? Do you know what happens when one snaps and all those pistons and valves suddenly are let loose? Do you wonder why all the elite automobile manufacturers only use chains? (Porsche, Mercedes, etc. - well, Mercedes used to only use chains back when they were a true engineering company and not a marketing company like they are now). The rubber belt makes for a smoother running engine, which is fine in a luxury automobile (remember, the 4.7's origin is in the old Lexus LS400 sedan). Unfortunately, Toyota is also putting belts in their diesels...
Better brakes - for a heavier truck...
***Oh my lord! Only 300 pounds heavier though with a zillion times the stopping power...even with a killed engine. You've got to be kidding!

The 80's have horrific and dangerous braking systems. We all know that and live with it.
Talk to Doug Miller about the 80's braking system, he'll give you more technical know-how and real-life testing than you've got in your pinky finger. Bottom line, its performance is nowhere close to "dangerous." Apparently you know it and live with it, but then we all know you live in your own little world anyway! My point was that the braking needed to be more robust to handle the extra weight. 300 pounds is not trivial. Have you ever taken college-level physics? And more importantly, that 300 pounds worth three tenths in the quarter mile! 
More Rigid frame - Yeah, again, heavier truck - on the UNIMOG, which is more capable than either of these trucks, the two frame rails are actually designed to flex independantly of each other to increases axle articulation, so what does that say...
***Can you say...exaggerate? 300 pounds heavier (6%) though with a 50% stiffer frame. That stronger frame has a lot to do with quietness, added durability, and ride quality. 300 pounds on a 5200 pound rig is like adding ONE PASSENGER.
Huh? Who do you hang out with? I think you all have a health problem that needs addressing.
Come on Derek. Wheel that '04 of your so you can see the light!
Why, when I can wheel the infinitely superior (off the tarmac) 80 Series?