Although they did. I have a few friends with them. It's the same ZF-6 found in the Super Duty. I THINK the least year you could ORDER one was 04 or 05...

 

how can the new fuel wax? there is no waxin it,,its gone like the sulpher. the twin turbo took care of the badlag in the 6.0. the fix with the stick was to start off in creeper, not 1st. the big beef wit the 6 spd was and is the way to fast reverse gear.try getting it going backwards onaa grade with 22,000 gross ?,this is the ony reason im getting the new 08 automatic. that stick 6 is fantastic trans but the reverse klls it. mine worked about 1000% better with 90-140 syn geaar lube in it.