What is wrong with my truck?!?

[isaac_alaska]

Nothing wrong with it! Just flip the rear diff over. Pull the axles, they unbolt at the rear hubs and slide out. There's even jacking screws to make them easy to pull. Disconnect rear driveline at diff, support and unbolt the rear diff, pop it out for a look. If nothing looks busted, bolt it back in right side up! You'll be good to go.

[Elwood]

Nothing wrong with it! Just flip the rear diff over. Pull the axles, they unbolt at the rear hubs and slide out. There's even jacking screws to make them easy to pull. Disconnect rear driveline at diff, support and unbolt the rear diff, pop it out for a look. If nothing looks busted, bolt it back in right side up! You'll be good to go.

This would be a good opportunity to check that you have the correct gasket between the third member and the axle housing, too. One of our members here (MonkeyMan?) had a hell of a time getting a broken axle shaft out of his rear axle, after it friction welded itself inside the tube. If I remember correctly, he eventually determined that an incorrect third member gasket had caused the problem.

The correct NOS gaskets are available from a number of vendors.