[Chevy454]

Unfortunately, not from the factory. In '94 the medium duty CAT diesel would have been the 3116, which was an I6. This replaced the 3208 somewhere around 1990(Moparts?), but it was a V8...but NEITHER of those went into a 1-ton.

I have heard of people transplanting 3208s into trucks, but I've personally never seen one. As for the auto tranny, being as the truck is a '94 it's gonna have the 4L80E, and I went through 2 of them in my '91...and this was PRIOR to my Paxton install. While the 4L80E is an electronic 400TH with overdrive, it's rediculously expensive to rebuild/replace if you trash it...trust me, 5 years ago when I went through it it was in the $2k neighborhood. I ended up going with a HD 4-speed with a gear splitter...