Vortec 8.1L 6-Speed Conversion Kit
Improve your 2001, 2002, 2003, 2004, 2005 or 2006 Chevy / GMC 8.1L's fuel economy and reliability by utilizing our in-house designed and tested kit coupled with our established transmission tuning. We calibrate the firmness and timing of shifts, so you’ll be guaranteed to feel the smoothness and better shift quality missing on the 5-speed Allison. If you’re like the rest of us here at Duramaxtuner using our trucks as daily drivers, the added gear helps take the wear and tear off your engine while cruising at high speeds. It keeps your RPMs at the most efficient curve of the rev range, giving you the best ride possible!
Want to talk with an expert about this product? Call us at 815-568-7920 Monday through Friday from 9-5 CST.
As low as $1,875.00
In stock
Enhance multiple aspects of your ride with the Duramaxtuner 6 Speed conversion kit!
Take your GM 8.1L to the next level of efficiency by adding a sixth gear!
Improve your fuel economy and reduce engine wear and road noise with this simple upgrade.
- Custom TCM tuning included for your specific truck
- Double Overdrive = 14% RPM reduction
- All new valve body, wiring harness, and solenoids
- Better Fuel Economy
- Lowered road noise
- Less wear on your engine
- Smoother Shifts
- Better power delivery
In addition to helping keep your truck on the road longer, something you're guaranteed to notice is the added bump in fuel economy. This is especially true for those making long commutes via highway. With the addition of a 6th overdrive gear you will run lower RPMs at highway cruizing speeds. The fewer RPMs you're turning, the better your fuel economy will be. Picking up even just a little bit goes a long way while putting commuting miles on your truck. You’ll also notice a significantly quieter ride after adding our kit to your truck. Road noise, engine noise, vibration, and harshness will decrease drastically, giving you a much more enjoyable ride.
Give us a call if you have any further questions and one of our reputable sales staff will be happy to answer any questions!
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