Dexter Axle Model Number????

[Joesplace]

I called Dexter today asking where I could find the axle model number so I could order parts prior to a complete tear down. They told me the model number was a 9 digit number stamped on the right front axle side. I've cleaned, wire brushed and looked everywhere on the axle but no numbers exist except on the backing plates.

Can someone assist, not sure where to look next. I have a 2005 2720SL and I need bearings, seals and shoes . . .

Thanks!