4.56 gearing

[95dually]

I recently bought a 95 chevy Cheyenne 3500 4×4. It is geared really low 4.56 the truck is mainly going to be used for highway use. Maybe a dozen times a year will be used for hauling bales horses and cattle. Looking at changing gears should I go 3.73 or 4.10. right now going 105-110 km rpm are 2500-2600 RPM fuel mileage is horrible 8-9 mpg

 

[Keeper]

nice truck!

31" tires = 3.73
33" tires = 4.10

 

[b454rat]

If it’s flat level ground 3.73s might be ok. I’d say 4:10s….

 

[Rickf]

If it has a BBC you might get into low double digits for mileage regardless of gearing.

 

[Supercharged111]

I have wee 225/75/16 tires and a 4.10 with my supercharged big block dually and see 10.7mpg highway. This would be the equivalent of a 31" tire with a 4.56. Don't get your hopes up too high for mileage, these things are pigs! But if you're not going to haul a lot and it's a big block I vote 3.73 with mileage being your objective. You may even be able to find one in the junkyard, sell yours, and get your money back.

 

[95dually]

If it has a BBC you might get into low double digits for mileage regardless of gearing.

Yeah it's a 7.4 I did take it to the city one day and at 200km I wasn't even at half. But driving to town and on country roads it eats fuel 200 km and your at a 1/4 tank left.

 

[95dually]

I have wee 225/75/16 tires and a 4.10 with my supercharged big block dually and see 10.7mpg highway. This would be the equivalent of a 31" tire with a 4.56. Don't get your hopes up too high for mileage, these things are pigs! But if you're not going to haul a lot and it's a big block I vote 3.73 with mileage being your objective. You may even be able to find one in the junkyard, sell yours, and get your money back.

I found a set of 4.10 close to me he wants 500 for them both. So I was thinking could go that route and put a little bigger tires on.

 

[95dually]

I found a set of 4.10 close to me he wants 500 for them both. So I was thinking could go that route and put a little bigger tires on.

I have 235/85/16 on mine

 

[95dually]

I found a set of 4.10 close to me he wants 500 for them both. So I was thinking could go that route and put a little bigger tires on.

I

nice truck!

31" tires = 3.73
33" tires = 4.10

Thanks it's pretty mint only got 150000km on it guy basically gave it away for what I paid.

 

[Supercharged111]

I have 235/85/16 on mine

So you're already at a 31" tire. 33 is as tall as you can go on a dually. You're going to be looking at 255/85/16 and some spacers for the rear wheels.