gear ratio
#1
gear ratio
i know its been posted a bunucha times but i cant seem to find the threads. so how can i tell which gear ratio i have? i think i have 4:10's cuz doing 65 im right at 2000 rpm and i would think i would be at a lower rpm? if im correct and i do ahve 4:10's ...these r "pullin gears" right? could this also be why i get bad fuel mileage? i like to hover around 70-80 on the highway which means my r's are higher. i filled up today and did a hand calculation...13.2...over head says 14.8-15.1
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#6
RE: gear ratio
That 4;10 gear was disigned for pullin, I have the same gear. Just take it easy and you should average around 15-17. the first few months i had my 04 3500 I didnt get $^%# for mpg cause I couldnt get enough of kikkin it around. Now that Im used to it and treat it better the mpg"s have improved.
#7
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#8
RE: gear ratio
Here's the deal if you are even considering a gear swap to get better MPG.......
Swapping gears for MPG is like ordering a Diet Coke with a king size Double Whopper meal, it'll never pay off.
Figure this (double it for a 4x4)
Gear set: $150 - 200
Install Kit: $100 - 200, depending on the level of kit you get
Labor: $300 - 600 per axle, unless you know how to do it yourself. Little hint, this IS NOT a beginner job. You need a few special tools to do it right and you can screw it up real easy.
So, for a 2wd truck, you would be looking at $550 - 1000 dollars to do a gear swap. That's a lot of fuel to recoup. Double that for a 4wd.
Best bets to getting some mileage
1 - Lose the un-needed weight. All that crap in the toolbox that you NEVER use. Get rid of it.
2 - Run your tires at the max inflation that still gives you good wear.
3 - Change your air / fuel filters. Not necessarilly to a high flow air filter, as this means more air. More air = more fuel.
4 - Drive like you have an egg under your foot.
5 - Try to keep the engine in the meat of the torque curve at highway speeds. Above 2K and your making a good amount of boost. Boost = Air = Fuel = Poopy MPG.
Swapping gears for MPG is like ordering a Diet Coke with a king size Double Whopper meal, it'll never pay off.
Figure this (double it for a 4x4)
Gear set: $150 - 200
Install Kit: $100 - 200, depending on the level of kit you get
Labor: $300 - 600 per axle, unless you know how to do it yourself. Little hint, this IS NOT a beginner job. You need a few special tools to do it right and you can screw it up real easy.
So, for a 2wd truck, you would be looking at $550 - 1000 dollars to do a gear swap. That's a lot of fuel to recoup. Double that for a 4wd.
Best bets to getting some mileage
1 - Lose the un-needed weight. All that crap in the toolbox that you NEVER use. Get rid of it.
2 - Run your tires at the max inflation that still gives you good wear.
3 - Change your air / fuel filters. Not necessarilly to a high flow air filter, as this means more air. More air = more fuel.
4 - Drive like you have an egg under your foot.
5 - Try to keep the engine in the meat of the torque curve at highway speeds. Above 2K and your making a good amount of boost. Boost = Air = Fuel = Poopy MPG.
#10