BFG gear ratio calculator

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Oct 10, 2008 | 02:43 PM

james90755

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JK Freak

Joined: Oct 2007

Posts: 657

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From: Signal Hill, CA

BFG gear ratio calculator

While hunting around for tires, I came across this calculator... http://www.bfgoodrichtires.com/bfgapp/popups/demos/demos_pickuptruck_0.jsp

It gives some easy calculations of how gear ratios change with tire size...... which might be of some use to everyone. Enjoy.

Last edited by wayoflife; Oct 11, 2008 at 06:38 AM.

Oct 11, 2008 | 06:04 AM

Frog Rubicon

JK Freak

Joined: Aug 2008

Posts: 562

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From: NYC

Very interesting...

A Rubicon with 35" tires will have a 3.75 ratio!!!

Therefore, I have a better ratio with my actual 33" tires

Oct 11, 2008 | 06:17 AM

tgrt

Former Vendor

Joined: Apr 2007

Posts: 3,621

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From: nowhere

I guess that goes to show you how much a few tenths make a difference with the gear ratio, because I felt like I had no power before I got 5.13s on my Rubicon after upgrading to 35 inch tires.

Oct 11, 2008 | 06:28 AM

Frog Rubicon

JK Freak

Joined: Aug 2008

Posts: 562

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From: NYC

Quote:

Originally Posted by tgrt

I guess that goes to show you how much a few tenths make a difference with the gear ratio, because I felt like I had no power before I got 5.13s on my Rubicon after upgrading to 35 inch tires.

Very very interesting...

Oct 11, 2008 | 08:50 AM

Geeper4x4

JK Super Freak

Joined: Aug 2007

Posts: 1,315

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From: Texas

Seems about right for the axle ratio change when going with larger tires. I currently have 4.10 with 33's but will be going to 35's for my next tire change. My plan is to go with 5.13 gears and that looks to be about right for 35-37's.

Last edited by Geeper4x4; Oct 11, 2008 at 09:31 AM.