SunCoast Allison Category 2 Transmission Rebuild Kit With Converter 01-05 GM 6.6L Duramax LB7/LLY RL-49-23420 leading to less cavitation and

leading to less cavitation and less erosion within the front cover

Greasable not required

or performing any service that would require removal of the intake manifold of your 6

Aside that

Important Note: Lower ball joints are knurled (BJ131)

SunCoast Allison Category 2 Transmission Rebuild Kit With Converter 01-05 GM 6.6L Duramax LB7/LLY RL-49-23420 leading to less cavitation andNeed a better performing transmission for your GM truck? Why buy a new transmission when you can rebuild and improve the one you have? Allison 5 speed transmissions were fantastic in their time with smooth shifting and some tough internal components. However, if you use your truck for heavy duty hauling it can take its toll on any transmission no matter how tough it is. Get your Allison transmission feeling as good as new with SunCoast's Allison