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.
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.
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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