Description

Enhance the reliability of your 2001, 2002, 2003, 2004, 2004.5, or 2005 LB7/LLY with our meticulously designed and rigorously tested kit, complemented by our refined transmission tuning. We fine-tune the firmness and timing of shifts, ensuring you experience the smoothness and improved shift quality lacking in the 5-speed Allison transmission. Whether you’re among the many of us who rely on our trucks for daily driving, or simply seeking to prolong your engine’s lifespan, the additional gear provided helps alleviate strain and wear, particularly during high-speed cruising. By maintaining your RPMs within the most efficient range of the rev curve, we ensure you enjoy the optimal ride quality possible!  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.

Features:

• 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
• Smoother Shifts
• Better Fuel Economy
• Better power delivery
• Works with high idle, retrofit tap shifters