I just got my first GMC truck. It's this beautiful 1981 K2500 Sierra Grande. We bought it and picked it up for the buyer. I carefully drove it up on the trailer but my spotter didn't notice my aluminum transfer case didn't clear the trailer by about a half inch. Soon I heard a thud and my heart sunk. I backed up to discover a puddle of transmission fluid. We used a come along and got it loaded and the hole covered. Got it unloaded and pushed halfway into my driveway. I cleaned it up pretty good with brake wash and it looks like only the housing is damaged. The trucks heavy. I need to push it another 50 yards to it's new resting place all semi steep uphill. Can I drive it that 50 yards? What would happen? Please elaborate! Thanks!