Benefits of Running Higher Gear Ratio?

[tyler.lee132]

On my truck i have the 8.8 axle with the 3.73 and i was jsut curious as to the benefits of upgrading to a higher gear ratio such as; 4.10 or 4.56?

 

[adsm08]

Only really helpful if you need more towing power or went to bigger tires. If you live in a city and do mostly stop and go low gears (high number) is good. If you run on the highway a lot then high gears are better.

For a stock V6 truck that sees a fairly even mix 3.73 is probably best. For a 4-cly 4.10 or 4.56 would be better.

 

[Mac]

That's actually a lower ratio, common mistake. Going to one of those ratios will give better acceleration and more torque at the wheels (better for off-roading) and get you back into the proper spedo reading when changing tire size.
Dave