Regearing Axle Ratio from 3.23 to 4.11 or 4.56? Any thoughts???

[Stormin08]

Here was my Sundays...WHY NOT project. this is the only piece i had left to touch on the 89.
why ??? no reason, wasnt broke, just a one wheel peeler.

decided that day was the day to do something better...now, does it snoball into a stronger, bigger diff or housing...most likely.
but a simple regear and lsd is al it needs...maybe lager shafts to ensure the 420/420 doesnt kill it...but it has survived that since 17, and been there since 89. but you get the point...

 

[Sparky2011]

I have changed multiple rear gear diffs on older trucks. Your gas mileage will be affected. You will regain your power/torque at low speeds, but high speed acceleration will diminish. Also, i have found that changing the gear ratio along with upsizing tires changes your speedometer reading. Your truck will say you are going 60, but in reality you are going 66 (just an example).