The new G-56 6-speed with 3.73's will run about the same rpm's as the old nv5600 6-speed with 4.10's. Alot of people don't like the new one because of the mileage, but I pull pretty heavy with mine and I like the gearing.

 

Yeah, I'm glad the rpm's end up about the same. I pull pretty heavy too and that's where I like it as well. If they both have the same 1st gear ratio, I hope the little higher gearing in the 07 won't make that big a difference in taking off with a full load.

 

Actually the g-56 has a much lower first gear ratio so you should be fine. The gear ratios are as follows: 1st gear G-56 6.29 1st gear nv-5600 5.63, 2nd 3.48 - 3.38, 3rd 2.10 - 2.04, 4th 1.38 - 1.39, 5th 1.00 - 1.00, 6th .79 - .73

 

Is the gear ratio listed on the decal in the glove box like the 06 and below models?

 

That is a nice truck, but I would bet that as short as that thing is it is ruff riding with out a load on her. That could make a bad back badder.

 

Not listed in the 06's.

 

Erics76, Just wondering, have you pulled heavy with it yet?? and what are you thoughts?

 

There's nothing in the glovebox.

The heaviest thing I've pulled so far is a 5 round bale hay hauler that is probably around 8,000lb loaded. So it's not really a challenge. I'm going to be moving 20 head of cattle in a 28 foot trailer on Wednesday. I'll have a better idea on how it is then.

 

Nice truck!

 

I hauled 20 cows and 2 bulls yesterday in two loads. The first load was 10 and the second load was 12. They were angus and brangus cows and angus bulls, I figure they averaged 1400lbs. So the first load was around 14,000lbs, and the second 16,800. The pasture I hauled them to, I'd hauled to before in the old 2002 cab and chassis. The new truck definately pulls it better. The best way I can describe it is that in the 2002 truck with around that weight, if you had the gas peddle over 3/4 the way down and then floored it, nothing changed. No more speed. With the new truck, I was able to gain speed easily. It was a definate improvement. I like the exhaust brake alot. The shifter is still irritateing me though. I like the new trans, just not the location of reverse. I don't think it's something I'll just have to get used to either. I really don't like it. Overall i'm impressed with the truck though. It's much more refined than the 2002 it replaced in every detail. I really want to straight pipe it though.

 

ive towed 21550 which is a 8000 pound 32 foot double deck eby trailer and 900 wienling pigs, running 55 and 60 it does ok, does pull down quite a bit on hills but on the 4 lane running 65 &70 it does much better, ive only gotten around 9.5 to 10 mpg but it only has 1300 miles on it also, then again it runs for about 45 minutes while i load and about an hour when i unload and sweap out pine bedding so it will be better in the summer im sure