ok i got this tahoe with 189000k 4x4 recently rebuilt trans all full set of tires. it runs like a top a/c is ice cold leaks a lil coolant but thats cool i keep an eye on it. when i got it there was a gently hum in the drive line, but it had all mix matched tires so i attributed it to that. got full set of tires it got a lil better. 4x4 engages smoothly, and i used it recently to get up a steep incline in the rain pullin maybe 1000 lbs on a trailer. afterwards the hummin was a growl and an intermitant ban on acceleration bout 25 miles after that i went to accelerate BANG!!!! i felt like the drive shaft snapped it drives but grinds and bangs very consistantly i was right down the steer from home in 2x4 its horrible i cant do 5mph in 4x4 i can do 25 with out it sounding like its gonna explode. got there and smelled burnt fluid, not trans i know that smell. both shafts in place tight no play any thought or ideas ? also i have heard that you can turn it into a 2x4 in someway any info? i am brokes and just need to be able to drive it my buddy owns a lil shop so i got a place to work i need to konw if i can remove the t/c or some thin please help