# Input shaft diameter **URL:** \ **Category:** GEM Forum\ **Created:** [October 4, 2014, 5:25pm UTC](https://community.electricforum.com/t/input-shaft-diameter/4491 "2014-10-04T17:25:37Z")\ **Posts on this page:** 4\ **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:** [October 4, 2014, 5:25pm UTC](https://community.electricforum.com/t/input-shaft-diameter/4491/1 "2014-10-04T17:25:37Z")
Can anyone help me out with the splined portion of the Input shaft on my 99. The bearing portion is 25 MM 20 MM sticks in my mind but I don’t want to tear it down just to measure. ---
**Author:** ![GEMmechanic](https://avatars.discourse-cdn.com/v4/letter/g/ecccb3/32.png) [@GEMmechanic](https://community.electricforum.com/u/GEMmechanic)\ **Post date:** [October 5, 2014, 6:00am UTC](https://community.electricforum.com/t/input-shaft-diameter/4491/2 "2014-10-05T06:00:50Z")
I have one apart in the shop and will measure. It is known as GE 19 spline. These have been used on Yamaha, Club Car, and GEM when equipped with a GE motor. Daniel ---
**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:** [October 5, 2014, 7:21am UTC](https://community.electricforum.com/t/input-shaft-diameter/4491/3 "2014-10-05T07:21:24Z")
Thanks, didnt want to tear mine down just to measure. Note: Mine is 19 spline. ---
**Author:** ![GEMmechanic](https://avatars.discourse-cdn.com/v4/letter/g/ecccb3/32.png) [@GEMmechanic](https://community.electricforum.com/u/GEMmechanic)\ **Post date:** [October 5, 2014, 12:37pm UTC](https://community.electricforum.com/t/input-shaft-diameter/4491/4 "2014-10-05T12:37:37Z")
I get a major diameter of 21mm and a minor diameter of 19.5mm.