I just swapped in a dana 60 ff in place of my stock 12 bolt. My truck's lifted 4" and the stock driveshaft has never been modified. I went to put the driveshaft back on and the u-joints seemed to fit ok, but the driveshaft was too long. Under full compression it wouldn't fit between the np205 transfer case and the axle. I figured if I had to get my driveshaft shortened anyways, I might as well go to a junkyard and pick up a heavier duty one. Does anyone have any recommendations? Is the driveshaft off of a 1 ton stronger and a direct bolt up? I also pulled out my th350/np205 and put in a sm465/np205 I believe they are the same length. Thanks for any help.