GM 4L65E 4L80E Transmission MLP Sensor Position Switch (PRNDL) 2004-On (Late Design) Also known as (TRS) Transmission Range Sensor & (NSS) Neutral Safety Switch (DTR) Has one 11 Pin Connector Has one 11 Pin Connector & mounts externally on top of the transmission. Found on 2004 UP 4L60E models and Fits 2001 UP 4L80E's For the earlier design please see ours store! If you need anything else for your 4L65E/4L80E Rebuild; Master Kit, Bearing kit, Washers Tech manual, etc please see our store.