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03-05 GM Duramax Allison 1000 5 Speed to 6 Speed Conversion Kit

03-05 GM Duramax Allison 1000 5 Speed to 6 Speed Conversion Kit


 

$2,174.75

A1-6VB-TCM-LLY
+

CONVERT YOUR 2003-2005
ALLISON 5 SPEED TO 6 SPEEDS

Drops 325 engine rpm @ 75 mph with 3.73 gears. Increases 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 (1 hour). No wiring, no modifications required. Indicate LB7 or LLY & year.


Includes: Sun Coast Engineered Valve Body, Solenoids. This kit includes smart clutch control valves for increased durability. The Sun Coast Engineered Valve Body is a certified-tested valve body assembly. No sticking valves here!

 

*$1200 Core deposit required. Core will be refunded upon return of valve body and stock TCM.
Please Indicate LB7 or LLY engine designation & truck year in the order comments!

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