no, mine was a new crate. I'm not worried about that.
the trans was a 65 though right?

Yes all 6.0s have been w/65 in 1/2 tons

the 1/2 ton LQ4 was backed by a 4L80, no?

You got me there. HD 1/2 ton but thoses are really lite 3/4s

thanks. just wanted to get it all straight.

btw; you got me all paraniod. how can i tell if i have an LQ4 or LQ9?

The vin it came out of,or top of the pistons

it never came out of anything (new crate) and hopefully wont be :judge:

What did you order? What part #?

it was my friends crate. I trust him 100%, hes a very good kid.

04 and previous denalis have the LQ4, they get the 325/375 rating from different computer tuning and different exhaust. All 6.0s in 1/2 ton trucks recieve the 65E where as the 1500hd's get the 6.0/80E combo. All of the suv's with the 6.0 have the 65E as well. In 05 the Denalis recieved the LQ9 with the same ratings as the SS and VHO or Vortec Maxx. In 05 they were also backed by a 65E. As far as 06 and up I dont know.