I am new to TDP and have not personaly owned a diesel. I currently own an 02 GMC 1/2 ton 2wd with a 4.8L. I have been throwing around the thought of putting a Duramax in it.

I still want to keep the driveability of the truck and obtain 20+ mpg (hopefully) after the conversion. I have also seen a duramax kick some butt in a races and that would be nice!

I was wondering what the best way to go about this would be. I was thinking about the LLY just based off of a few things I have read. Any thoughts would be great.