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Suncoast Allison 5-6 Speed Conversion Kit- Allison 04-05 LLY

Thoroughbred Sku #: SUNA1-6VB-TCM-LLY-CRE

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$2,950.00

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NOTE: This six speed conversion comes with the valve body and the updated TCM. It is plug and play.

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Product Details

Product Name: Suncoast Allison 5-6 Speed Conversion Kit - Allison 2004-2005 LLY
Manufacturer: Suncoast
Manufacturer Part #: A1-6VB-TCM-LLY
Thoroughbred Diesel Part #: SUNA1-6VB-TCM-LLY
Fitment Notes: Allison 2004-2005 LLY

The Suncoast A1-6VB-TCM-LLY Allison 5-6 Speed Conversion for your 2004-2005 GM 6.6L Duramax LLY converts your 5-Speed Allison A1000 Transmission into a 6-Speed like the later models. With the conversion, you can drop 325 engine rpm @ 75 mph with 3.73 gears. While increasing fuel economy 1 _ 1.5 MPG, reduces engine noise while cruising, a truck with 3.73 gears that normally likes cruising at 62 MPH will now cruise nice at 72 MPH. The gear ratio in your 5 speed is .71 and our 6th gear will be .61. 6th gear can be disabled with your two haul button and 5th canceled with OD off. Requires valve body and TCM change. No wiring, no modifications required.

Suncoast Allison 5-6 Speed Conversion Kit Features:

  • Converts 5-Speed Automatic To 6-Speed
  • Decrease Cruising RPM's
  • No Wiring, No Modifications Required
  • For more information on Suncoast call us at 1-859-737-4966.

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