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Gear Ratios?

GMCrazy777

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HawkeyeOC Senior Enthusiast

HawkeyeOC

Posted
Posted
i was just wondering what the difference in the gear ratios meant for performance and towing and etc. i have the 3.23 gears in my truck is that good or bad?

 

3.23 gears are great for gas mileage especially on the highway, but the tradeoff is that you lose some low end performance and towing ability.

66nova Senior Enthusiast

66nova

Posted
Posted

A locker "locks" the rear end while you are going straight so that both tires are applying power to the pavement. They use a set of toothed gears(or clutches) and a set of springs to allow one tire to spin faster while turning, but locked when going straight.

 

Unless you are racing or off-roading there is no real benefit to a locker. I especially would not recommend a true locker for an every day street ride. But when most people talk about a locker they are referring to a limited slip differential or positrac (posi). Regardless, for most vehicles there is no real benefit unless you just want to do a lot of burnouts and leave two tire marks instead of one.

 

This does not apply if you are on a drag strip or in the mud though.

soludsnake Enthusiast

soludsnake

Posted
Posted
Hopefully this is not too far off topic but is there an ideal gear ratio for towing travel trailers as an example?

Most people that tow w/ these trucks are using 4.10's.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
Posted
Hopefully this is not too far off topic but is there an ideal gear ratio for towing travel trailers as an example?

 

4.10 is usually the best...but you will lose mpg at cruising speed.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
Posted
i was just wondering what the difference in the gear ratios meant for performance and towing and etc. i have the 3.23 gears in my truck is that good or bad?

 

I have 3.23 gears out back in mine and it dogs whenever I tow....but I get good gas mileage

soludsnake Enthusiast

soludsnake

Posted
Posted
Hopefully this is not too far off topic but is there an ideal gear ratio for towing travel trailers as an example?

 

4.10 is usually the best...but you will lose mpg at cruising speed.

 

I hear that, I have to find a sweet spot so my RPM's are low but I'm satisfied with my speed. On the Coquihalla I'm usually doing 130 as it's not to demanding and my millage isn't terrible (as far as trucks go).

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