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Old 02-04-2011, 09:24 PM
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4L80-E Conversions with GM TCM.

I am in this to help YOU convert your vehicle to a 4L80/85-E transmission WITH the GM diesel TCM controller. I did this with a 77 crew cab dually and a carb. HEI is needed and I installed an electric speedo in mine.
I am a retired GM transmission calibration engineer. I have researched, talked to, and applied at TCI and other transmission controller companys. They have DONE YOU A GREAT INJUSTICE if you purchase this TCM. They HAVE NUMEROUS DEFICIENCYS and WILL burn your transmission clutches up. If you are NOT a gm trans calibrator and worked with the 4L80-E calibrations HOW CAN YOU DESIGN and CALIBRATE THE TCM Correctly?
I can and WILL help you if you would like it. I did it and it works GREAT and IT BULLET PROOF. I did minor mods to the valvebody space plate and NO OTHER MODS like bigger and more clutches. (They are a WASTE OF MONEY).

Is anyone interested in this and you can do this at home. A wiring harness will have to be constructed. There are companys that offer this service like Howell Fuel Injection. This is for the STAND ALONE GM DIESEL TCM APPLICATION and a 4L80/85-E transmission. NO other trans will work, sorry.

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