When inquiring about replacement parts or information about your axle, it is helpful to have your axle(s) serial number. All axles produced after April 2001, will have a nine digit number that can be found
near the center on the rear side of the axle beam. Look for the words DEXTER
AXLE and the lot number will be located directly under the name. For easier
identification, rubbing a piece of chalk over the number may help bring out the
Recreational Vehicle axles that have been certified for use in Canada will also
bear the letters CSA.