That wouldn't be hard to do at all. Those trucks are dogs for having twins. I went for a test drive with a friend that was going to buy one. It took a good while to get the turbos spooled. He ended up with a 3500 Duramax. He really should have listened to me about a Cummins cause his Dmax only has 5K on it and it's lost an injector... possibly a piston.

 

haha yeah well ricky bought the 08 with a 8 inch lift that is going in the diesel power mag sometime soon! But he also has a 03 cummins that is red and black and a 04.5 white dually...so i want to try and get him to go down there..which im sure he already plans on it!

 

OK, with all the mods onmine with 37's, averaging 16 now, lots of traffic, lots of red light driving. 15k miles, so it is still breaking in I am sure. On highway, I can get up around 18 mpg.

 

are you hand calculating your mileage and compensating for tire size?

 

Absolutely. It is running 14% off.... that is what I had figured before getting the PMT which shows the corrected speed. Running on Performance, keeping it around 66-67 mph.

 

do you know if your getting LSD vs ULSD diesel? Here in CA we can only get the ULSD fuel and it sucks... I'm lucky to get 17's on the hiway with my setup on ULSD... when we had the switch take place, I lost easily 2 mpg.

edit: now if you tell me your in CA or running ULSD... [:@]man I'll really be pissed... and will start to wonder wtf?

 

ya'll are realy making me want to go. . . .remember, I'm still on the stock clutch

 

you need to scurry on over to Garmons shop and have something done about that :-)

 

i had the stock tires whitch were at 29.5inch and now i got 34.5inch tire on my
3500 dually cummins,6 speed and i lost about 40mile of a tank,i got a hypertech computer
that helped alot ,i maked about 80 more miles out of a tank when i put in,the hypertech correct speedo
for bigger tire too,im really happy whit it!
My truck weight 9800lbs

Woligator
Quebec,Canada

 

I canfixthat myself

I just need to fix my little yoda first[&:]