The from XDP replaces the failed TCM in your
2011-2014 GM 6.6L Duramax LML 2WD. The A50 and T14 TCM that is used to
control the Allison 6-speed automatic transmission is typically
considered the weak link of the Allison transmission. This is due to
delicate thin wires inside the TCM that contact one another overtime and
short-out the entire module. In 2022, Allison sent out a letter (SIL
15-1K2K-22) announcing the discontinuation of support for the A50 and
T14 TCMs. This effectively leaves all 2009 to 2015 Duramax owners with
no permanent solution or fix for their Silverado/Sierra 2500HD/3500HD. Some of the warning signs of a failing TCM are messages including
“Service Brake System”, “Stabilitrak Service Required”, “Range Shift
Inhibited”, “Service Brake System”, and "Loss Of Communication To The
Transmission Control Module".
ATS set to work designing a solution
using their Translator technology.
The GM Allison T87A which replaces the old A50, is an improved TCM
module that ATS is releasing with much excitement. The T87a TCM, which
is
found on the current L5P Duramax, has a processor that is substantially
faster than the A50, which results in better shift quality, quicker
shifting, and improved drivability. The updated TCM is packaged in an
assembly with ATS Translator module and their built-in Co-Pilot
transmission features. The Co-Pilot function increases the power holding
capability of the factory transmission enabling the Allison to handle
much heavier loads and shift under much higher power levels without the
fear of damaging the clutch packs of the Allison transmission. This is a
substantial upgrade in power, performance and reliability over the
original factory A50 and T14 TCMs.
In addition, the ATS T87
Conversion also provides a much more aggressive factory exhaust brake
over the factory A50/T14 TCM. ATS was able to increase the exhaust
braking ability in two areas. First off, they enabled all of the
additional tables that the T87 TCM offers that are designed to operate
the standard exhaust brake function and the Tow Haul exhaust brake
function, these two tables are specifically designed to manage the
exhaust brake and provide an aggressive down shift schedule. Secondly,
they were able to command the ECM to use the full exhaust braking
function of the ECM, the factory A50/T14 TCM limits this ECM from
commanding the full exhaust brake. When the ATS T87-Translator upgrade
is installed it enables the ECM to apply the full exhaust braking effort
the engine has available. The combination of the T87, custom TCM
calibration and Translator module maximizes the Transmission and
Engine/Turbo exhaust brake to provide the most aggressive exhaust
braking yet. This function not only provides a safer level of driving
but it gives superior engine braking reduction with heavy loads.
No
core charge required, all components are brand new. GM has released a
Band-Aid fix which repairs the problem but does not fix the actual root
cause. This repair requires a trip to the dealership which can then take
up to a week or more to make it through the service department, costs
nearly as much as this upgrade, and continues to use the 10 old outdated
TCM technology. This leaves the same components vulnerable to
reproducing the same problem with no warranty on the repair.
Features:
- No Core Charge
- Direct-Fit Replacement
- Increases Throttle Response
- Fuel Economy And MPG Improvement
- Works With Stock Or Modified Trucks
- Controls And Increases Line Pressure
- Better Torque Converter Lock-Up Response
- Can Be Used With Any Engine Control Management Programming
- Brand New, Factory Sealed TCM And Translator/Co-Pilot Module
- Increases Life Expectancy Of The Allison LCT1000 Transmission
- Updated Shift Points To Keep The Engine Within Desired RPM Range
- Complete Wiring Harnesses Use State Of The Art Technology And Configuration
- Direct Replacement, No Permanent Modifications Required - Plug And Play OEM Quality Harness And Module
- Found
On The Current L5P Duramax, The T87a TCM Has A Much Faster Processor
Than The A50/T14 TCMs And That Equates To Better Shift Quality, Faster
Shifting And Overall Improved Drivability
Kit Includes:
Wiring Harness
Mounting Bracket
New Digital Speed Sensor
New Digital Turbine Sensor
New
T87 TCM That Is Unlocked And Has A Custom ATS Calibration Pre-Installed
That Optimizes The Performance Of The Allison Transmission.
New
Translator Module That Has The Co-Pilot Transmission Pressure Function
Enhancements Built In. The Co-Pilot Functionality Allows The Factory
Allison Transmission To Handle Higher Power Levels And Much Better
Durability.
Shipping Restrictions Apply This product can not be shipped to these states/provinces: CA