Jfletch

Hi their my name is justin and i have a 2000 chevy 3/4 Ton pickup last winter i was playing in the snow and bottomed out on gravel climbing a hill when i got home i knoticed a clicking noise, its consistent and i can hear it while coasting. I wasnt in a rush to fix it because i had another car but it just blew up, im currently barrowing my sisters car to get between school and work, i dont have the money for a new car and i cant find another rear end for under 900 any idea whats wrong?? Please help im 18 and really dont want to have to pull out a loan