Check the listing for details. Neutral Safety Switch TRANSMISSION MLPS 4L60E 4L65E 4L80E 2004-On New !. Condition: New. Listed at 49.00 USD. Brand New Manual Lever Position Sensor(MLPS)Has one 11-Pin ConnectorAlso known as (TRS) Transmission Range Sensor & (NSS) Neutral Safety Switch This sends information to the Powertrain Control Module (PCM) that in turns sends control signals to the transmission. If the engine computer gets bad info than it's extremely likely it's going to send bad control info to the transmission. Luckily, it is not very expensive and a rather 'easy' replacement. Mounts externally on the transmission case. FOR GM APPLICATIONS This Fits: 4L60E model Transmissions 2004-On4L65E model Transmissions 2004-On4L80E model Transmissions 2001-On Replaces OEM Part No. 24221125 This is generally a high failure item and many times the cause of shifting issues.______________________________________________________________ Save a bundle here over the cost from a dealership. Buy with confidence * Check out our feedbackAll of our items listed are in stock and ready to ship We Quick-Ship Every Day !