Diagnosis & Overhaul - JATCO 3N71B, L3N71B & L4N71B: Identification

Transmission type may be identified by a group of numbers stamped into transmission case casting on left side; characters correspond to transmission type: 3N71B, L3N71B or L4N71B. Transmission model may be identified by metal plate attached to right side of transmission case. Plate lists model code and serial number.