This page will have random information, pictures, schematics I used to do the Duramax swap on my 1967 C10. The donor vehicle was a 2008 Express ambulance.  The 6.6L Duramax was mated to a 4L85E. This was a lot more complicated than a gas swap. This page is not meant to walk you through the process, but will just show you what I did, and the support material I used to complete the conversion. (Click on photo below to enlarge)