The Allison 1000 is one of the strongest, most well-known transmissions in the diesel world, and it was paired with the Duramax. We carry all the 5-speed and 6-speed Allison 1000 transmissions from 2001 – present. 2WD and 4WD – ready to install. We also carry transmission internal and external components such as bell housing, tail housing, valve bodies, and drums. All transmissions and components are visually inspected for quality
and are backed by our steadfast 30-day warranty.
HAR also stocks several options when it comes to transfer cases. Not only do we offer a used transfer case for every generation, but we also offer fresh rebuilds. Our rebuilt transfer cases are done in-house by our experienced technician and use upgraded parts to prevent common transfer case wear.
They are also backed by a longer 6-month warranty. Call today to inquire.