tomb
OBS Enthusiast
I do struggle pulling a 6 foot trailer. I can see why 4.10 is suggested. Is there anyone running 33" tires with 4.10 gear ratio? What is your gas mileage in town?
HELP 00 K2500 CCSB 5.7 is A GUTLESS gas guzzler
- Thread starter TGS00
- Start date
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slippy3002
Master Machinist
I have 285/75/16 @ 215k miles with a 350 3.73's and I can roast the tires all day. I'm still getting 14mpg on winter fuel as well. I either need a o2 sensor or a TPS since she is taking a bit too get back down to an idle at a red light(maybe 20sec.).
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Biggershaft96
Cant Getrite
Dam my truck has all the ass in the world but I ain't gettin near as good as you guys lol. I might be gettin 14 highway with a 96 350 vortec ECSB with 3:73s and 285s. But she runs great. Does it misfire or studder?
great white
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Wow, just wow.
In a word: no.
If you are running stock tire sizes (or close to it) 4.10's will drop your mileage.
If you've got big tires on it, that's a horse of a different color...
great white
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Can't edit post so I'll just repost it:
Wow, just wow.
In a word: no.
If you are running stock tire sizes (or close to it) 4.10's will drop your mileage.
I'm running 4.10 and stock tire sizes on my 98 k2500 eclb. I pull 19-20 straight highway, but I'm running a diesel. 350 Gassers should be in around 13-4 highway with 4.10. 454 is significantly lower
If you've got big tires on it, that's a horse of a different color...
Wow, just wow.
In a word: no.
If you are running stock tire sizes (or close to it) 4.10's will drop your mileage.
I'm running 4.10 and stock tire sizes on my 98 k2500 eclb. I pull 19-20 straight highway, but I'm running a diesel. 350 Gassers should be in around 13-4 highway with 4.10. 454 is significantly lower
If you've got big tires on it, that's a horse of a different color...
slippy3002
Master Machinist
33´s aren't much bigger and aren't worth 4.10's.
My brother in-laws old 88 rcsb had a 6" procomp, 3" body lift and 38's and still had 3.42´s in out. It got sh¡t for milage, but could still roast them tires.
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My brother in-laws old 88 rcsb had a 6" procomp, 3" body lift and 38's and still had 3.42´s in out. It got sh¡t for milage, but could still roast them tires.
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Thats amazing he musta had some kinda crazy engine
slippy3002
Master Machinist
slippy3002
Master Machinist
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TylerZ281500
Yukon Ridin High
thats the most beautiful stepside ive ever seen. lke said stock tires and more gearing will only drop mileagei get 13mpg with a built 350tbi, built trans and locked rear end. and not a very light foot. highway about 18. id cehck your fuel filter, do your compression tests and what everyone else had said. buying a truck with a stock 200k everything isnt gonna run like a ***** ape
