My 85 300TDT just turned 411k. I'm hearing a knocking noise when I make a sharp right turn which is comming somewhere in the rear. I'm assuming it's the axel. I noticed one of boots is torn also. My question is should I replace both axels?, and if so what about the rear bearings?Are they included in a set of rebuilds?, or are the bearings seperate? Obviously I'm going to have this done by someone who hopefully knows what he's doing, I just want to have all the parts ready for him. Thanks..

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85 300TDT 456,000 orig. miles