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Fng Lookin At A New Truck

fatalwishes

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fatalwishes Enthusiast

fatalwishes

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:)

 

I own a 2008 Dodge Ram and am looking to trade it in on a 2011 Silverado Extended Cab Z71 4x4.

 

I test drove two different trucks and they are night and day different.

 

The first on is this white one

 

http://www.jerryschevytexas.com/VehicleDet...d-TX/1213785103

 

It really felt like a scalded a$$ed ape the way it ran. It pulled hard and would start to leave two black marks if you didn't lift up. On the highway, cruise control set on 60 mph, the best mpg I could manage with the system reset was 18. I drove the truck close to 100 miles throughout the day so I'm pretty certain that is what it is capable of.

 

The second truck, the one I really want to buy because I think Black/beige is just too good looking......drives totally different.

 

http

://www.jerryschevytexas.com/VehicleDet...-TX/1225626453

 

As you can see, both trucks are the same price, have the same options, and other than the color, are the same truck.

 

Yet the black one one, when driven on the same highways as the white one, would get as high as 23 mpg on the computer..it didn't pull as hard and would only chirp the tires off teh line. It felt smoother and was easier on the computer.

 

 

It honestly feels like the white truck has a 3:42 gear ratio and the black one has a 3:08 ration.

 

Both trucks have the GU6 RPO code in the glove box so I'm curious what ya'lls opinion is on this.

 

I'm going to try to buy tomorrow. 8 grand off plus dearlership loyalty/military discounts is too good to pass on.

 

Are the computers that far off or is there that much difference in driving all the trucks? Temperature was the same on both days. Both trucks had nitrogen filled tires and the same amount of gas.

 

I've read a lot of forums lately and sounds like some people get really bad mpg's yet others are happy.

 

I'm lucky my neighbor is a general sales manager so I can test drive anything I want for a day.

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KMGZ400 Senior Enthusiast

KMGZ400

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its as simple as gear ratio, with the taller gear you will get shittier MPG's but better performance. it all depends what you want, i personally would go find the truck you want.. a black one with at least 3.42's

 

 

that black truck looks really nice with the tan

fatalwishes Enthusiast

fatalwishes

Posted
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its as simple as gear ratio, with the taller gear you will get shittier MPG's but better performance. it all depends what you want, i personally would go find the truck you want.. a black one with at least 3.42's

 

 

that black truck looks really nice with the tan

 

I agree it looks pretty good.

 

I want the truck that gets the best gas mileage.

 

The black truck shows it has 3:42 gears on the sticker, and it has the RPO GU6 in the glove box.

 

 

I'm just wondering if GM didn't make a mistake or the trucks are programmed differently or what.

fatalwishes Enthusiast

fatalwishes

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are you sure they are both 6.2's?

 

 

They are supposed to be identical. Both have the LC9 RPO so they would both be 5.3L.

 

I did notice going down the highway, cruise set on 60mph, the white truck would not go under 1700 rpm and the black truck dipped down to 1400 a couple of times.

 

I know manufactures don'y make mistakes often, but it really looks like the gear ratio posted in the glove box and on the sticker and the the ratio that is actually in the differential may be two different things.

KMGZ400 Senior Enthusiast

KMGZ400

Posted
Posted

thats very weird.. you should have the dealer run the vins... and i guess check over the build sheet closely one more time. from reading the specs on the trucks from both links, it says they are both mechanicly the exactly same

cracked_up Enthusiast

cracked_up

Posted
Posted

Jack them up and spin the rear tire 1 revolution mark the drive shaft and count how many times it goes around.

 

That will tell you if the gear ratio is different between the two.

Stevens03 Senior Enthusiast

Stevens03

Posted
Posted

I would get the one you liked the best. They shouldn't drive that different if they have the same engine and gear option. If one ran much better than the other, then thats the one I'd go with. They shouldn't be that different. Both are great looking trucks so I'd pick the one that ran the best. If your that worried about mileage, then I'd consider finding one with the 3.08 gear option.

 

Were the weather conditions the same both days you test drove the trucks? Cooler weather would make a difference verses hot weather.

lineman Enthusiast

lineman

Posted
Posted

Both are nice looking trucks, get the one you like. I like the white cause scratches dont show as bad but that is me. The black is better looking thow.

Stevens03 Senior Enthusiast

Stevens03

Posted
Posted

Looking at the online window sticker, they both have identical options other than color. They should have driven very much the same :)

fatalwishes Enthusiast

fatalwishes

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Jack them up and spin the rear tire 1 revolution mark the drive shaft and count how many times it goes around.

 

That will tell you if the gear ratio is different between the two.

 

 

I'll do that!!

 

Only because of the RPM's at 60 mph were 300 apart.....

 

1700 on the white one and 1400 on the black....

 

I would get the one you liked the best. They shouldn't drive that different if they have the same engine and gear option. If one ran much better than the other, then thats the one I'd go with. They shouldn't be that different. Both are great looking trucks so I'd pick the one that ran the best. If your that worried about mileage, then I'd consider finding one with the 3.08 gear option.

 

Were the weather conditions the same both days you test drove the trucks? Cooler weather would make a difference verses hot weather.

 

Yes as mentioned above, the weather was the same on both days, and I even drove on the same highway to be sure.

 

 

Both are nice looking trucks, get the one you like. I like the white cause scratches dont show as bad but that is me. The black is better looking thow.

 

 

I hear ya on the scratches. I'm tired of white trucks, I dunno I've had a few.....that black and Tan truck looks really good in real life.....

 

I just need to check up on the rear ratio.

 

I'm not too concerned if it's a 3:08 because that will pull just as well as a 4speed with 3:73 gears according to all the things I have seen because of the 6 spd gearing.

 

I'd sure like to know what is going on though. The RPM difference is enough for me to double check. If I'm paying for a 3:42 I need to make sure that's what is in it.

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted
I think all z71 4x4's are 3.42 by default. I'm sure someone will be along shortly to correct me if I'm wrong. :)

 

Nope, Z71's also come with 3.08's

tjm80 Enthusiast

tjm80

Posted
Posted
I think all z71 4x4's are 3.42 by default. I'm sure someone will be along shortly to correct me if I'm wrong. :)

 

Nope, Z71's also come with 3.08's

 

 

Knew it! Doesn't make much sense to me to have a 4x4 truck with a 3.08 ratio though. Nonetheless, both of the stickers of the trucks the OP posted show that both of these trucks have 3.42.

fatalwishes Enthusiast

fatalwishes

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Well I own the black truck. It looks too good. Come to find out the white truck was in the service dept....

 

My guess is 6th gear wasn't working? I dunno.....

 

I set the cruise on 60mph on the way home....30 minute drive and averaged 22.3 mpg. Not bad from a full size 4x4.

 

Kinda strange GM uses drum brakes on the rear.....

 

I noticed Toyota Tacoma's do as well.....

 

Oh well I can start my truck from my phone and unlock and lock the doors now lol. That's pretty cool.

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