DDP Enhanced T87 Duramax TCM for Allison 6 Speed Transmission 2015-2016

This module only works in the late 2015-2016 trucks.  It will not work in any truck older than 2015.  

 This DDP new Pre-Programmed TCM comes with your choice of either OEM factory calibrations or our Enhanced calibrations. 

Benefits of a DDP Enhanced TCM include:

• Improved throttle response.
• Revised shift strategies for better shift rpm and quality.
• Improved Torque converter lock-up.
• Increase MPGs.
• Extend transmission life.
• Works with factory or aftermarket ECM programming
• Plug and Play Install with No Dealer Visit Require
• No Core Needed
• Limited Lifetime Warranty

Fitment:

Fits Chevrolet and GMC 2500HD and 3500HD Pickup and Cab & Chassis trucks.  10th digit of VIN being a F or G.  Trucks with 10th digit being a F please visually inspect your TCM to see that it matches the one in the picture.  TCM is located on the fan shroud by the drivers side battery.  The late 2015s came with the T87 TCM.  Early 2015s came with the A50.

The T87 Transmission Control Module found in the 2015.5-2016 2500/3500 Duramax is prone to failure. The internal circuit board fails and is not serviceable.  When this failure occurs you may observe messages such as Range Shift Inhibited, Service Brake System, Service stabilatrak, or might experience loss of gear shift indicator on dash, slamming into Drive or Reverse, and DTC U0101 for loss of communication with TCM.