Ok guys, I need some help! I finished up the install yesterday. I put the fluids in the transfer case and the transmission (I only put 3 quarts in at first as it was showing at the cold mark at the dip stick). At first it was cranking over very slow, felt like the battery was dead but it was fully charged. I cleaned the battery terminals, checked the wiring at the starter, banged on the started and it cranked over normal and started. From there on it cranked perfect and started normally. I let it run for a little while and went through the gears. It didn't engage but I wasn't concerned yet. I checked the fluid again and it was low, off the dip stick. I added 2 more quarts and got it back to the cold Mark on the dip stick. I put it in reverse and it went into gear very smoothly. I backed out of the driveway and drove it around the neighborhood. It up shifted perfectly but had a couple of hiccups when it needed to down shift. However it felt pretty good. I brought it back to the house and let it idle while checking my the fluid at the hot mark now. The fluid was low, off the dip stick again. I followed the service manual and went through all the gears, leaving it in neutral to check the level. Over the next hour I added 2.5 more quarts (for a total of 7.5 quarts) until it was at the bottom hot mark. At that point it was late so I shut if off and went to bed. This morning I was going to drive it to work but it wouldn't go into gear at all. I tried for a couple of minutes. In reverse, giving it lots of throttle, it would creep backwards at a very slow roll. Then in drive, giving it lots of throttle it would creep forwards. However it felt like it wasn't in gear at all. I have no idea what the issue is and had to leave it and take a different vehicle to work. Any ideas??? I did check underneath it and there were no fluid leaks.