OK I'll try to clear this up. I have two M1028S One I bought from GL I drove down to Virgina to pick it up and was disappointed when I got there it's not a basket case but needs TLC The pics. were deceiving I wanted a really nice truck for my project so it's on my todo list then it will be for sale.My second I bought from a private owner who bought it from a Base in Maryland I went on vacation in NC. stopped on the way down paid for it had the title transferred and mailed to the old owner and then stopped on the way home and drove it back 4 HRS. at 59 MPH [I was afraid to go any faster as it sounded like the motor was going to come through the hood] it's my pride and joy. From what I've read this one is a 1986 M1028A3 I say this because it's a turbo 400 with a NP208 and a rear sway bar, it was a shelter carrier I know because it still has the bracket on the rear of the frame with the huge threaded nut [receiver] where the carrier was anchored. Am I correct? It now has a pick-up box on it ,that's how I bought it ,the seller thought it would sell quicker this way rather than a cab and chassis. It just turned 5350 miles it is in mint condition there is a place on the frame where the under coating peeled off and the black frame paint is like the day it rolled off the assembly line.So I guess you know why I want the 4L80E these trucks need a 4th gear at least I think so.Why a van? Cheaper than a 4x4 [way to hard to find a complete set up and to expensive to buy separately ]If it's a 6.2L with a 4L80E I'll get a lot of what I need - Trans,Trans control module,Wiring harness,IP with TPS sensor,VAC pump with ESS sensor,Dust cover & dipstick tube, all I'll have to worry about is the VSS sensor.I agree this one is far away that's why I asked the question about weather or not I can tell by the VIN. what trans. it has. I already have the NP205 transfer case I'll deal with the output shaft on the 2WD Trans. that's not a big deal. Oh yea my project is and I know I probably wont make a lot of friends with this is to turn this one into a 1 ton dump I have already built a 79 k30 4x4 350 stick dump so I'll be taking the dump assembly back off that truck and installing it on the A3.I don't understand the comment about the 4L80E it's and electronic version of the 400 just about bullet proof .OK I HOPE THAT HELPS Thanks again.