rear end in 99 tahoe is shot i can move d drive shaft up and down at d front of d rear axel, opened up rear diff and found metal chunks. im not trying to get bigger gears or disk brakes, i just need to find what is compatable to put n and any info on how to take it out and put one back n. whats a good course of action im a regular guy with a mortgage and kids i drive it back and forth to work just needing some info on how tto replace or fix.