06/07 5.9L transmissions - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 02-15-2007, 06:01 PM Thread Starter
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06/07 5.9L transmissions

Gotta question guys and gals, I've been holding off waiting for the 6.7L with a 6spd auto but the local dealers here still have several 06/07 5.9's on the lot and are offering some really good rebates on them.
So is the 4spd Auto worth it, I've heard it has problems? What kind of fuel mileage compared to the 6spd manual? I have a manual trans now and don't really want another one because of my 20 minutes of city driving everyday.

I don't tow/haul much, mostly I just want a BFT(Big F**in Truck) cause I like them. My brother has an 06 5.9L 6spd manual and gets about 20-21MPG. I also know I can add a chip to the 5.9 and adjust power/performance based on my needs at the moment. Any suggestions? Should I jump on a 5.9 or wait for the 6.7 and a 6spd Auto?
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post #2 of 3 (permalink) Old 02-15-2007, 08:37 PM
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Nobody knows much about the 6.7 and it's durability. So your kind of rolling the dice with buying a 6.7. You'll be safe with the 5.9 Auto. The 4sp auto's have a bad rep. But the new ones are quite a bit better than the older ones. Plus there are tons of aftermarket producst for the dodge autos. You'll probably see better fuel mileage with the Auto because you don't loss turbo boost when shiftingand the o/d is much higher than the 6sp.
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post #3 of 3 (permalink) Old 02-15-2007, 08:57 PM Thread Starter
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I didn't know the 4spd Auto had a higher o/d than the 6spd manual. It'll still tow more than I'm ever gonna use it for, so that might not be so bad. Thanks for the info.
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