Want to know your gear ratio for sure? - Page 2 - JeepForum.com
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post #16 of 28 Old 11-29-2012, 10:40 PM
riot1987
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That axle seems almost useless in a wheelin rig.. Aint that a little high?



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post #17 of 28 Old 11-29-2012, 10:44 PM
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What vehicle is it in?
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post #18 of 28 Old 11-29-2012, 10:48 PM
riot1987
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It out of a mid 70's 1/2 ton chevy


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post #19 of 28 Old 06-01-2014, 05:11 PM
cheroxy
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Sorry to resurrect this old thread, but I did what it said on my 2003 TJ and got 7.25 rotations on drive shaft to the 2 rotations of my tire. I have 35" tires on 15" rims. Are these numbers for JK's only?
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post #20 of 28 Old 06-01-2014, 05:19 PM
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Quote:
Originally Posted by cheroxy View Post
Sorry to resurrect this old thread, but I did what it said on my 2003 TJ and got 7.25 rotations on drive shaft to the 2 rotations of my tire. I have 35" tires on 15" rims. Are these numbers for JK's only?
Nevermind, a little more digging found it, I had both tires rotating instead of just one. It looks like i Have the 3.73 stock ratio.
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post #21 of 28 Old 06-01-2014, 05:28 PM
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Here is the condensed version:

Jack one front tire off the ground.
Put a chalk mark on the tire and the drive shaft.
Rotate the tire by hand 2 complete revolutions while counting the drive shaft turns. The number will be your gear ratio.
A little less than 3 and 1/4 turns will be 3.21 gears.
About 3 and 3/4 turns will be 3.73 gears.
A little over 4 turns will be 4.10 gears.
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post #22 of 28 Old 06-03-2014, 08:27 AM
Airborne Lee
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Raised Jeep, turned wheel two times, had six beers, I must have 3.10 gears?

'16 JKU Rubicon, Tan, RR Front Bumper, 9500i, Atlas Rear w/Tire Carrier M416 Trailer
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post #23 of 28 Old 06-03-2014, 08:57 AM
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Quote:
Originally Posted by Airborne Lee View Post
Raised Jeep, turned wheel two times, had six beers, I must have 3.10 gears?
See what you get with just one beer.

Did your drive shaft turn a little less than 3 and 1/4 turns?
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post #24 of 28 Old 06-04-2014, 01:59 PM
jwmbishop
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Raised one rear tire, rotated 2 times, got dizzy and fell down. Drank another beer, raised another tire (on the front this time), rotated two times (this time remembering to turn the TIRE duh), but the muffler didn't turn so lost track or what I was doing.
Drank another beer.
Drove to mechanic to show me how to do the simple check - forgetting to take jacks out. Thank the lord for steel jack wheels - rubber would not have lasted 6 miles.

Does this mean I have a CAI instead of a gear ratio?

J Wm Bishop EA, ASADE
The wagon should, of course, be as light as possible, but strength should not be sacrificed to lightness, for on any but the regularly traveled roads, the wagon will get many a
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post #25 of 28 Old 06-04-2014, 05:20 PM
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Quote:
Originally Posted by jwmbishop View Post
Raised one rear tire, rotated 2 times, got dizzy and fell down. Drank another beer, raised another tire (on the front this time), rotated two times (this time remembering to turn the TIRE duh), but the muffler didn't turn so lost track or what I was doing.
Drank another beer.
Drove to mechanic to show me how to do the simple check - forgetting to take jacks out. Thank the lord for steel jack wheels - rubber would not have lasted 6 miles.

Does this mean I have a CAI instead of a gear ratio?
No it means you should stick to iced tea instead.


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post #26 of 28 Old 02-20-2015, 07:22 PM
SlickJeeper
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i need help are 5:13 gears good for a 2010 wrangler on 35's or is that to low of a gear ratio?
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post #27 of 28 Old 02-20-2015, 07:41 PM
Maertz
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Na id do 5.38

Wishing I Wasn't Part Of The 'JK' Crowd...

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post #28 of 28 Old 02-20-2015, 08:37 PM
1222
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Quote:
Originally Posted by SlickJeeper View Post
i need help are 5:13 gears good for a 2010 wrangler on 35's or is that to low of a gear ratio?
5.13ís are the most popular gear choice for the JK with 35ís and auto. Some people go as low, high numerical, to 5.38ís and are very happy with that choice also. This is all for the 3.8 engine (2007-2011) which you have. For those that have the 3.6 (2012-2015) this does not apply.

It would help if you would fill in your profile so we can give better advice. For instance, we have no idea what transmission you have which will reflect just what gears to select.


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