whats your favorite diesel pickup

No.

It's one of the reason's the 3406 is a hot commodity for salvage yards. The Cats are strong engines and people know it. One of the reasons a lot of smaller companies are ordering glider kits. They can buy a new truck, but because it's a "kit" they can drop the older engines in 'em and by-pass the EPA regulations on diesels.

Robert, I agree with you. I had a fleet of 40 Internationals with DT3406's with Allison Auto transmission in them for city delivery trucks. I liked them, the drivers loved them, and even the mechanics in our shop liked them. We'd do an inframe at about 400,000, and a complete rebuilt at 750,000 ( usually just a swap at that point, with a rebuilt from a prior swap).

As far as a medium duty worker, the 3406 was damn hard to beat.