k well i have a dodge 2500 5.9l v8 with a 16 inch lift i was recently backing up into my driveway and the revesre went then tried moving forward and that went too but it intermittintly will work again perfectly fine before giving completely out is this tranny or t case problem it gives no warning of giving out it just stops instantly giving out with a hard kick when you look at the driveshafts under the truck while trying to move forward it looks like they are struggling to move (only doing half turn at a time) please voice your opinion i need to fix this quick i have another competition coming up soon and need this rig operational

 

post up some pics....

sounds like the tranny might be taking a dump on you.

 

check the top of your tcase to see if its cracked all to hell.