Quote:
Originally Posted by TEXCRAWLER
I have a '01 ford ranger 4x4 V6 4.0 with 419 gears. Gas mileage is horrible. I want to step down to a 3.55 gear. Would that hurt the truck at all as for power band from the engine aspect. I know it will definitely lower my rpm's. Give me some input please.
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I assume you mean you have 4.10's.
When switching to a taller gear, you will notice a reduction in acceleration.
Given you are 4WD - you're looking at $500 to $1,000 per axle to regear your vehicle (unless you do it yourself).
With that in mind, you might want to look into what the payback period would be when it comes to the fuel mileage increase.
The math might not justify things unless you drive it a ton.
Also, keep in mind that 4WD Rangers w/ the 4.0 engine are not exactly known for even decent fuel mileage on the best of days.