I have a 1993 GMC 3500 that is in extremely nice shape. It has a 4.11 rear diff and a 5 speed standard transmission. I am giving it to my daughter's boyfriend and we plan to replace the 6.5 diesel wit...
Shop the internet. You will find several companies that sell all the parts to make the Cummins swap. They can answer all your questions. I don't think it's as easy you might think..