In reply to both Ed and Duane, in my experience, the NP203 is really stout but I'd like the option of 2WD for increased gas mileage because I use this truck as a daily driver for work. I was thinking of the NP242 at first due to the 2WD/FT4WD/PT4WD options this would give me but since it was never offered behind a big block or a hot 360 from the factory, but I think this option is out unless someone offers a some type stout chain upgrade for this unit, not to mention the hassle of installing a flip kit and having new axles made as well as converting to a fixed yoke. I'm a little leery of converting the NP203 to part time 4WD as I've heard that there are some lubrication problems that may arise, such as having to shift into part time 4WD every 200 miles or so to lube the transfer case properly. So, it seems that the NP241 swap with the wide chain upgrade would be my best bet, although I'll really miss my full time 4WD option. Just recently, I pulled my front driveshaft to diagnose a really annoying squeak (which happened to be my front driveshaft CV joint, a little cleaning and lube and all is good!!), and took a spin around the block with my transfer case in 4Lock. We had a bit of snow lately and I was alll ooooverrr the rrroad!!! I didn't realize how much the FT4WD really helped in the snow.