Duramax Tuner LB7 LLY 6 Speed Allison Conversion Kit with Plug & Play TCM

Converting your early LB7 LLY 5 speed Duramax to a 6 speed can refine you trucks ride and performance. This package from Duramax Tuner arrives to you as a plug and play kit. Simply install the provided valve body and TCM, then return your original valve body and TCM. Each TCM ships loaded with software tailored to your specific truck. 

• Custom TCM tuning Included for your specific truck
• Double Overdrive = 14% RPM reduction
• All new valve body, wiring harness, and solenoids
• Lowered road noise
• Less wear on your engine
• Refined Shifts
• Better Fuel Economy
• Better power delivery

In addition to helping keep your truck on the road longer, something you will notice is the added bump in fuel economy. This is especially true for those of us logging long commutes via highway. The less RPMs, the better your fuel economy. Picking up just a little bit goes a long way while putting on the commuting miles. You’ll also notice how much quieter your ride will be when adding our kit to your truck. NVH (Noise, vibration, and harshness) will decrease drastically, giving you a much more enjoyable ride. 

Core Charge:

A $350 core charge is applied to your original valve body and TCM. These items must be returned undamaged and complete within 30 days to receive a $350 credit.