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Anyone have a 6 speed 450 6.4? Did you haft to order it? Hows the mpg? 4.30s or 4.88s? Is it the same trans as i had in a 02 7.3? Ive never seen a 6 speed 6.4. I want one but would like to see one or hear what ppl think of them.
 

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You're most likely going to have to order one. Mileage is pretty bad, you're looking at about 12-15 with 4.30's and 10-13 with 4.88's. Also, with the 6-speed to F-450's are detuned to 325 horsepower. Unless you really need it to tow a lot I'd look at the F-350's with 3.73's or 4.10's. You can get the same options, even the wide-trac front end.

I've got a F-350 dually 4x4 with the 6-speed and 3.73 gears. After removing the DPF I'm getting over 20 mpg consistently.
 

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I echo southtexas about the 350 and 3.73's. I ordered my F450 with the 6 speed handshaker and 4.30's...thank goodness it was a lemon. I am getting 12.5-13 if I drive sanely (less than 65) empty and HORRIBLE if you hook up a trailer. Pulling a 12K pound trailer I am averaging 9 MPG driving sane. I had a 02 Dmax before this PSD and it had the same ZF6 that Ford uses w/ 3.73's and I absolutely loved that truck when it came to pulling. I know for a fact that that Dmax can outpull this F450 and do it with better fuel economy, but I like this PSD so I am having Ford replace the 450 with a 350 and 3.73's. I used to get 22 MPG in the stock Chevy w/ 35's and doing 70, but the EPA crap may have cut that for everyone.
Just my thoughts
 
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