New Holland SmartTrax T8.320 Service Manual page 24

INTRODUCTION
Axle serial number
Located on the rear left hand side of the class 4.75
fixed, 4.75 saddle suspended, 5.0 fixed and 5.0 saddle
suspended front axle housings. (example shown)
7
RAIL12TR02142AA
47917992 25/09/2015
17