lrx has the vin on the door, the cowl, and the frame on the passengers side, ahead of the rear axle. the motor isnt stamped to the truck, so the "numbers matching" is just talk, for this truck. no vin on the trans or rear either.
the vin will be D13BS8Jxxxxxx thats what you want to see. try the dodge connection website, for lrx guys and parts.
http://www.lilredexpress.org/http://www.lilreddad.com/http://www.dodgeconnection.com/LilRedInfo.htmlbtw, there is a truck section here, to ask this kinda stuff at...