Whether you're planning to do this yourself or take it to an alignment shop, This might get you started anyway.

http://www.vehicross.info/forums/sho...alignment+shop

As far as the rattle goes, the most common culprit I've heard of around here is the crossmember/tranny mount bolts coming loose/falling out allowing the tranny to move around and bump against other components. There have been members here who have gone to tighten them and discovered them completely MIA. Another place to start?