Bush, ain't you got a sense a humor???
I guess not.
I wasn't knocking your truck, I'm glad that you have had good success with it and that you can do alot of the repairs/maint. yourself.
I am trying to get to that point, I don't have as much experience as you or others on here and have never claimed to.
It was meant to be a kind jesture or compliment to your 6.0
And as far as the rear diff goes, I didn't have the time to do it and it was already in the shop for some other work and it only cost me 20.00 to have it put on and the rear diff fluid didn't cost me a dime.