I just had my truck at my local 4x4 shop to have my front driveshaft shortened to accomadate my new, shorter manual transmission. When I came to pick it up they told me in the test drive the front driveshaft had no vibrations, but the dif wasn't locking with the axle. When i got it home, I quickly found the problem. The two vacuum lines that run to the tcase weren't hooked up (I think the one is a breather). Now comes my problem - where are they suppose to hook up? I must have pulled them off when i did my motor trans swap. I took lots of pictures of everything I took off, but a few weeks back I (accidentally) drove over my phone and lost all the pics on it