# 12.3 transmissions available **URL:** \ **Category:** GEM Forum\ **Created:** [June 4, 2020, 12:25am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934 "2020-06-04T00:25:58Z")\ **Posts on this page:** 15\ **Page:** 1
**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:** [June 4, 2020, 12:25am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/1 "2020-06-04T00:25:58Z")
12.3 TRANSMISSIONS $600 exchange plus shipping $750 outright plus shipping ISOLATION UNITS $180 Plus your old brackets. [rodneyadiehl@aol.com](mailto:rodneyadiehl@aol.com) ---
**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:** [June 4, 2020, 12:55am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/2 "2020-06-04T00:55:05Z")
Rodney: I’m guessing your talking about the Newer Gem cars with “Team Transmissions” ---
**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:** [June 4, 2020, 1:21am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/3 "2020-06-04T01:21:29Z")
Any other ratios? How about a quiet fix for a noisy 2018 oem? ---
**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:** [June 4, 2020, 2:20am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/4 "2020-06-04T02:20:08Z")
Yes, you have one. In a message dated 6/3/2020 9:05:09 PM Eastern Standard Time, [electricforum@discoursemail.com](mailto:electricforum@discoursemail.com) writes: ---
**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:** [June 4, 2020, 2:25am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/5 "2020-06-04T02:25:28Z")
If it didn’t come with the Isolator units I have a set. $180 and your take offs. Grant has one and likes it. In a message dated 6/3/2020 9:31:40 PM Eastern Standard Time, [electricforum@discoursemail.com](mailto:electricforum@discoursemail.com) writes: ---
**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:** [June 4, 2020, 2:33am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/6 "2020-06-04T02:33:36Z")
9.3 is available however it makes the car a dog and range sucks. I have not heard a single good comment on this unit. HOWEVER: No one has reduced tire diameter this might tip over the the equation. In a message dated 6/3/2020 9:31:40 PM Eastern Standard Time, [electricforum@discoursemail.com](mailto:electricforum@discoursemail.com) writes: ---
**Author:** ![TIMOTI](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/timoti/32/6819_2.png) [@TIMOTI](https://community.electricforum.com/u/TIMOTI)\ **Post date:** [June 5, 2020, 4:27am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/7 "2020-06-05T04:27:15Z")
Hi old\_houseboater I purchase a 7 HP motor last year from you and I would like to change the gear to go faster what do you recommend me and $$$ I have a 2005 eL Thank You ---
**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:** [June 5, 2020, 3:01pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/8 "2020-06-05T15:01:19Z")
What tire diameter would you think would be a good one for the 9:8 ---
**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:** [June 5, 2020, 3:31pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/9 "2020-06-05T15:31:39Z")
Might suggest 21 inch for 9.3 gears. ---
**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:** [June 5, 2020, 6:49pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/10 "2020-06-05T18:49:26Z")
You already have the best gearbox for performance. Either the 8.9 or 10.35 The 2005 has the T3 controller. This has been problematic from a performance standpoint and 29 MPH seems the norm. I think someone may have solved the problem but he posted about 2 years ago. If you find the solution email me because i would like to write it down. [rodneyadiehl@aol.com](mailto:rodneyadiehl@aol.com) ---
**Author:** ![TIMOTI](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/timoti/32/6819_2.png) [@TIMOTI](https://community.electricforum.com/u/TIMOTI)\ **Post date:** [June 5, 2020, 11:02pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/11 "2020-06-05T23:02:07Z")
Which one would go faster 8.9 or 10.35. Changing the control to T4 would solve the problem? ---
**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:** [June 5, 2020, 11:55pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/12 "2020-06-05T23:55:54Z")
I and others have tried to change out to a T4 didnt work. You would also have to change out the harness. A 10.35 is probably a better choice because it allows you to run a larger tire, My 4 passenger has an 8.9 but I run a 21 inch tire . Most of the guys like the looks of a bigger tire. ---
**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:** [June 6, 2020, 12:12am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/13 "2020-06-06T00:12:24Z")
Hmmm Did you say this is an EL some EL’s had a 14.76 gearbox and were a heavy duty animal. Define what you have. Did this com with 9 8 volt batteries? All my assumptions were for a standard cart. we might need to start over. ! how fast do you want to go? 2 how fast can it go now? 3 what modification have you done to date? 4 what diameter tires does it have now? 5 4 lug wheels or 5? ---
**Author:** ![TIMOTI](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/timoti/32/6819_2.png) [@TIMOTI](https://community.electricforum.com/u/TIMOTI)\ **Post date:** [June 6, 2020, 12:53am UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/14 "2020-06-06T00:53:14Z")
It has 6 12v batteries but I’m upgrade to 25s (Rechargeable 3.2v200ah LiFePO4 Lithium iron phosphate battery) waiting to receive from China, now it go 29 mp with the MM, I would like to go at list 35 to 40 mp, tires are 14" ring 19.5 H with 4 lugs Thank You ---
**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:** [June 6, 2020, 4:12pm UTC](https://community.electricforum.com/t/12-3-transmissions-available/18934/15 "2020-06-06T16:12:10Z")
29 mph Seems to be the limit with a T3 controller. This subject had a lot of research a few years ago. Go to SEARCH in the above right corner and TYPE in: GEM won’t go over 29 mph Seems a T4 would be the answer. You would also need a wiring harness from a T4 as the T3 harness is specific to the T3 and I dont know the differences.I