Originally Posted by JamDeeper

A complete guesstimate... I'd think it's close tho.

Oman, you purchased these not know what it would do? May I have some money? I need some jeep parts.

Originally Posted by Oman XJ

I know what does it do
But asking if I'll get better acceleration with my 31 tyers

Originally Posted by JamDeeper

Your stock pinion spins 3.55 times to one rotation of the ring.

Your new pinion is going to spin 4.56 times to one rotation of the new ring.

It doesn't seem like much, but your rpm's are going to drastically change with the same size tire.

My guess of 63mph/101kph is a guess indeed. But don't expect your top speed to be more than it was.

The only thing you'd gain from doing this, is torque out of the hole. But a better chance of breaking other things if this is your plan. You're going to "redline" faster than you'd finish a quarter mile/.4 km.

Still not sure what your plan is.

Originally Posted by Oman XJ

You cleared many things to me thank you

I guess now I have to buy bigger tyers

Originally Posted by Oman XJ

Breaking other things such as what exactly??

Originally Posted by JamDeeper

Like I said, I don't know what your plans are. But the higher torque and acceleration, I'd say it's going to have a greater wear and tear on your vehicle..

Originally Posted by Oman XJ

I'm looking for more torque in sand and dunes

Thanks again Jam

Originally Posted by Oman XJ

I'm looking for more torque in sand and dunes

Originally Posted by SteveMongr

The issue you may run into is 'wheel spin' due open differentials.
Might as well add lockers when you have the gears done.
I suggest as wide a tire as you can fit.

Have you tried 4-Low with 31" tires?