Long story short I am putting away childish things of small cars and getting a family sized suburban. But I won't be happy unless I am messing under the hood with whatever I am driving. Currently looking at 90, 95 4x4, and a 95 3/4 ton Suburbans. All 3 are gas 5.7. Which would be the easiest, cheapest to convert to a diesel. I figured 6.2 would be the best diesel motor to switch to but I'm open to suggestions. The overall plan is to switch to diesel and start using bio-diesel. Overall what would be the parts list and price of my conversion. I haven't been able to locate a regular diesel suburban in my price range so I would like to see if a conversion would be affordable. Thanks for any help, and I look forward to joining the elite world of being a diesel truck owner