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Old 04-13-2006, 01:19 PM   #1
72freak
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4:10 rear versus gas mileage..1999 truck

I did a post a few weeks and and got little to no response. I thought I would try again before moving on to other places.

I am looking at 1998/1999 2500 and 3500 Chevy suburbans and crew cab trucks. I insist on the 5.7 and 2wd. A good bit of these trucks end up with a 4:10 rear. I have never owned a daily driver type vehicle with that rear end and was wondering if anyone has that combination and could clue me in on their gas mileage. I would like to know mileage on 4x4's also. Below is one I am looking at.

Any help would be appreciated

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Old 04-13-2006, 01:28 PM   #2
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Re: 4:10 rear versus gas mileage..1999 truck

If you want a 2500+ chassis, you wil probably end up with a 4.10 gear.
I guess you would have to ask yourself why do you want that heavy a chassis. Most of the time is is for payload/towing capacity, then the 4.10 helps a great deal.

On that truck, the difference in MPG between the 4.10 and 3.73 won't be that much.
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Old 04-13-2006, 03:47 PM   #3
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Re: 4:10 rear versus gas mileage..1999 truck

From reading post on GM-trucks.com I get that the general fuel concensus on an older truck with a 4.10 rear end is about 13-14 city and 14-16 highway. With 12-13 being a towing average. A 3.73 rear may get you 1mpg more. A lot of it depends how you drive. If you tow and drive city all day you'll get about 13 mpg, if you drive highway all the time you might get 15 as an average. Just my opinion. This board is currently more motivated by folks with older trucks, although this section is growing. For more information on newer trucks you may want to try GM-trucks.com
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Old 04-13-2006, 04:31 PM   #4
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Re: 4:10 rear versus gas mileage..1999 truck

Quote:
Originally Posted by 67c10step
If you want a 2500+ chassis, you wil probably end up with a 4.10 gear.
I guess you would have to ask yourself why do you want that heavy a chassis. Most of the time is is for payload/towing capacity, then the 4.10 helps a great deal.

On that truck, the difference in MPG between the 4.10 and 3.73 won't be that much.
I want the best of all worlds unfortunatley.....I want to haul, tow, and have a daily driver all in one truck. It will be a daily driver 80% of the time. I also want the 3/4 ton or 1 ton so I will not have to have that JOKE we call emmisions testing here in Metro Atlanta/Georgia. (not required over 8550 GVW)
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Old 04-13-2006, 04:33 PM   #5
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Re: 4:10 rear versus gas mileage..1999 truck

Quote:
Originally Posted by 67ChevyRedneck
From reading post on GM-trucks.com I get that the general fuel concensus on an older truck with a 4.10 rear end is about 13-14 city and 14-16 highway. With 12-13 being a towing average. A 3.73 rear may get you 1mpg more. A lot of it depends how you drive. If you tow and drive city all day you'll get about 13 mpg, if you drive highway all the time you might get 15 as an average. Just my opinion. This board is currently more motivated by folks with older trucks, although this section is growing. For more information on newer trucks you may want to try GM-trucks.com
Thats kinda what I figured.....by the way...I work all over the Greenville area.
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Old 04-13-2006, 05:28 PM   #6
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Re: 4:10 rear versus gas mileage..1999 truck

Quote:
Originally Posted by 72freak
I want the best of all worlds unfortunatley.....I want to haul, tow, and have a daily driver all in one truck. It will be a daily driver 80% of the time. I also want the 3/4 ton or 1 ton so I will not have to have that JOKE we call emmisions testing here in Metro Atlanta/Georgia. (not required over 8550 GVW)
Depending on what you tow and how far at a time, the 3.73 is a great gear for what you are looking for
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Old 04-13-2006, 07:03 PM   #7
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Re: 4:10 rear versus gas mileage..1999 truck

Quote:
Originally Posted by 67c10step
Depending on what you tow and how far at a time, the 3.73 is a great gear for what you are looking for
Yep...I am well aware that a 3:73 is the ticket. I have had several trucks and Suburbans with that rear. The reson for the post was to try to find out how different the 4:10 fuel consumption would be without having to buy the vehicle first. Most of the ones I am looking at are at lots or delerships so there is no previous owner history.
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Old 04-14-2006, 09:41 AM   #8
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Re: 4:10 rear versus gas mileage..1999 truck

I see. Sounds like you would see only a slight decrease, depending on how heavy your foot is

Good Luck! Nice choice looking at Crew Cabs, that is the only way I'd go if I did it again.
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