The 5-Speed Allison 1000 transmission used in the 2004.5-2005 2500 and 3500 HD Chevrolet Silverado and GMC Sierra equipped with the LLY Duramax earned their reputation for excellence largely because of the advanced electronic control provided by the TCM (Transmission Control Module). Changing that factory calibration is especially important when you modify your truck and/or install ECM Tuning. Custom TCM Tuning gives you quicker shift changes, smoother operation, and an overall better driving experience.
DuramaxTuner's Custom TCM tuning will decrease time between shifts and improve clutch holding capacity by increasing line pressure electronically. This will make a more durable, better feeling, and better driving transmission. It can also help keep the engine in the ideal RPM range to utilize all of its potential power. 5-Speed transmission tuning can be utilized to enhance performance of both stock and built transmissions.
What’s the difference between Mild and Aggressive Transmission Tuning?
Smooth Shift Points are the best choice if you . . .
Aggressive/Elevated Shift Points are the best choice for if you . . .
Why do you need TCM Tuning?
TCM Tuning is especially important for trucks with:
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