Allison Internal Transmission Harness
2001-2003 6.6L Duramax LB7
Here at ProSource Diesel, we take great pride not only in providing the best that the industry has to offer for upgrades to your truck but also in making sure we provide the absolute best fluids and maintenance items to ensure safe and reliable operation for years to come. Your truck relies on the best fluids and filters to work together in making sure your investment is safe. We spend countless hours researching and testing the products we recommend in our catalog. This way we can bring to you comprehensive service kits that meet or exceed factory specifications and can take the abuse of heavy-duty work and play.
In this case, any time you open up your transmission to upgrade or replace parts that open up the lubrication system we recommend replacing your fluid and filters.