# Help identify gear ratio of this Dana transmission

**URL:** <https://community.electricforum.com/t/help-identify-gear-ratio-of-this-dana-transmission/5450>\
**Category:** GEM Forum\
**Created:** [October 18, 2015, 7:57pm UTC](https://community.electricforum.com/t/help-identify-gear-ratio-of-this-dana-transmission/5450 "2015-10-18T19:57:54Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**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:** [October 22, 2015, 12:22pm UTC](https://community.electricforum.com/t/help-identify-gear-ratio-of-this-dana-transmission/5450/3 "2015-10-22T12:22:59Z")

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That serial number is for a 8.9 to 1. But you cant be 100% sure unless you count the Axel shaft Rev’s.

016-000111= 8.9 to 1 Transmission  
0613-00249= 10.35 to 1 Transmission  
0613-00643= 12.44 to 1 Transmission. (This has not been Verified) if someone has this Transmission can you verify it please.

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