# What gear ratio **URL:** \ **Category:** GEM Forum\ **Created:** [January 9, 2020, 9:39pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861 "2020-01-09T21:39:04Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Ljtoro](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/ljtoro/32/5120_2.png) [@Ljtoro](https://community.electricforum.com/u/Ljtoro)\ **Post date:** [January 9, 2020, 9:39pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/1 "2020-01-09T21:39:04Z")
Can anyone help me out my buddy is trying to figure out his ratio on his gearbox ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/6604cde5181fbe98229a78bacf2bd978dc13df8d.jpeg) I tried looking but numbers don’t match what’s posted around here It’s a 2008 e2 ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [January 10, 2020, 2:45am UTC](https://community.electricforum.com/t/what-gear-ratio/17861/2 "2020-01-10T02:45:22Z")
I’m gonna Guess it’s a 12:44 Rodney knows all the transmission Numbers It could only be either a 10:35 or a 12:44 sorry I couldn’t be more help we need to make a sticky thread with all transmission part # and gear raitos ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [January 10, 2020, 2:47am UTC](https://community.electricforum.com/t/what-gear-ratio/17861/3 "2020-01-10T02:47:41Z")
I posted this info in another thread 016-000111= 8.9 to 1 Transmission 0613-00249= 10.35 to 1 Transmission 0613-00643= 12.44 to 1 Transmission. ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [January 10, 2020, 2:49am UTC](https://community.electricforum.com/t/what-gear-ratio/17861/4 "2020-01-10T02:49:16Z")
What Gem is that Transmission in? E2 E4 E6 ? ---
**Author:** ![RS\_E6](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/rs_e6/32/12308_2.png) [@RS\_E6](https://community.electricforum.com/u/RS_E6)\ **Post date:** [January 10, 2020, 12:44pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/5 "2020-01-10T12:44:35Z")
He mentioned it’s a 2008 E2. I checked the parts catalog but no luck. That has worked for me with other gearboxes. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [January 10, 2020, 3:15pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/6 "2020-01-10T15:15:58Z")
It takes less time to measure it than waiting for an answer. Stick a pin in the green wire. Count the pulses with an analog meter while rolling the car slow and steady. 12 swings in 1/4 tire rotation is 12:1. Or 48 in a full rotation. ---
**Author:** ![jm1361](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jm1361](https://community.electricforum.com/u/jm1361)\ **Post date:** [January 10, 2020, 9:07pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/7 "2020-01-10T21:07:43Z")
could you explain stick a pin in the green wire for us novices ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [January 10, 2020, 9:59pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/8 "2020-01-10T21:59:20Z")
The green wire on the hall effect sensor at the end of motor is the “pulse” wire. It sends 4 pulses per motor revolution to the controller. The controller then scales this to mph and sends data to speedometer. Connect meter black, to black wire or B- Meter red, to green wire. Meter will read about 10vdc. (key on) Mark the tire and count the times meter goes to zero volts, in 1/4 turn. That is your gear ratio. For precision roll a full turn and divide by 4. ---
**Author:** ![jm1361](https://avatars.discourse-cdn.com/v4/letter/j/7ea924/32.png) [@jm1361](https://community.electricforum.com/u/jm1361)\ **Post date:** [January 12, 2020, 10:54pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/9 "2020-01-12T22:54:40Z")
Thanks for the explanation it is nice of you to take the time for those of us that are technically challenged ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [January 12, 2020, 11:58pm UTC](https://community.electricforum.com/t/what-gear-ratio/17861/10 "2020-01-12T23:58:08Z")
I cant pin down the part Number 2008 came with a 12.44 ratio.