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...
in one of the diesel mags a guy has a suburban or a blazer or whatever with the old diesel and he wrote in to ask about an upgrade. Said its pretty easy chebby to chebby. So that would probably be the best route for ya to go. a cummins change over based on what I have read will run pretty close to $20K once it is all done. Many have estimated $10K, but the ones that reportedly done it give the higher number.