blownsmoke2

I am going to buy a new truck for pulling my equipment around along with my pulling truck. How do you guys with the 6.7 like them? Auto or manual. Or do I just stick with the old realible 5.9. I will probably leave stock as it has to be dependable and I already have one money pit.

mulisha

listen man you just started one heck of a thread i think. the 6.7 guys are always gonna say there great, besides the ones who had a ton of problems and couldnt take it anymore and went to old reliable.IMO wait 5 more years before you even consider that nightmare.the 5.9 has been proven time and again.its a no brainer.but good luck.

aborgardt

I have an 06 5.9 and my brother has a 07 6.7..... I'd take mine any day of the week. they ONLY thing i like about that powertrain is the new auto tranny. IMO

quadman20

I'd say my buddy's got a new 08 6.7 and after this weekend I'd say the 6.7 got guts. I was pulling about 3k and he was pulling his 36' 5er @ 10k and he kept up with me and I was on it at times. He's all stock. I'd have to say it's got to be that new auto tranny. I think my tranny is a little week, it's always felt that way but it always gets me there.

82NDSNPR

no epa bs on my truck and never will be cant say that about the 6.7 so i will never own one.

82NDSNPR

no epa bs on my truck and never will be cant say that about the 6.7 so i will never own one.

jgiachino

If your gonna keep it stock, i'd get the 6.7.....

I have the 5.9, love it, and would get again as i modd'd it...but the 6.7l has the good trans, now has 2 yrs under it's belt,.....i like my buddies 6.7, it pulls great, has been reliable....mileage needs a touch of help...

Rednecktastic

If you leave it stock and don't mind the possiblility of lower mpg then get the 6.7.

phantom 309

my dad has a 6.7 and the dealershiip shop is pretty much its garage, however, when it is up and running it can pull whatever you throw at it

Blake Clark

If you are considering the 6.7 be prepared to start deleteing stuff. If you dont you will more than likely get frustrated with it. If you do you will not be disappointed, another thought... there is a ton more stuff out there to mod out the 5.9 at this time, making it easier and cheaper to get more out of it. HOWEVER.... them 5.9 guys dont have that sweet as honey 6 spd auto.... na na na na na na.....

JCLeary

I would buy a 6.7 if I were to leave it stock. You never know what you're going to get with a 5.9 either. My '03 with the same rims/tires would get 18mpg highway. My '07 gets 13.5 at most. Most tanks average from 11-12, mixed driving. That's hand calculated, every tank for the life of the truck.

My point- I'd take the 6-speed auto and 6.7 any day (***IF I WERE TO LEAVE IT STOCK***)

Hintz

Actually Id do the complete opposite.

If you want to stay stock get the 5.9, youll have zero probems and if you want to upgrade to can, very easy.

If you get the 6.7 and want it to live nice and healthy mod it, take the DPF and EGR off. Youll get much better power, MPG's, and longevity will increase.

jgiachino

By modding i meant chase the HP/TQ Dragon, not basic stuff...but agree, if your states emissions dont test every 5 seconds that the egr/dpf stuff needs to be resolved

mulisha

jc your all wrong, for all the wrong reasons, ru kidding lol

cincydiesel

I'd say 6.7 if you dont mind the engine light being on all the time