DHD offers a full line of replacement and performance parts for the 10L1000 Allison, 10R80 & 10L80 platforms. These 10 speed transmission platforms are found predominantly in the 2020 and newer GM...More Details »
For over 20 years DHD's transmission department has focused on Allison transmission building, component improvements and industry advancement. Our trained technicians focus primarily on Allison...More Details »
