To complement EFILive's LML Duramax engine tuning software, T87 6 Speed Allison transmission tuning is now available. 

This initial tuning release delivers key transmission parameters including shift speeds, TCC control and shift times.  While the LML engine controller has a read restriction in place, the T87 transmission controller does not.  Customers can expect read times of approximately 2 minutes and 30 seconds.  Both full flash and calibration only flash options exist with calibration flashing taking just 30 seconds. 

Controller locking for tuners to restrict access to tune file information has been developed for this controller.  Tuners can activate Auto-Lock by applying the EFILocker Custom Operating System Patch.

The GM Transmission Supported Vehicles page has been updated.  T87 Allison tuning software is a FREE software upgrade for existing customers who update their software to the July 2016 Beta release or later.