What is MMO 6 speed trans? - Chevy and GMC Duramax Diesel Forum
Kodiak & Topkick Forum Discussion of Medium Duty

 
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post #1 of 3 (permalink) Old 01-14-2020, 03:00 PM Thread Starter
 
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What is MMO 6 speed trans?

I emailed the gm heritage center to find out empty weight of my topkick. ( didnt want to scale it)

anyway, they got into the details of the motor and trans. So they said it was equipped with a 3116 and a MMO 6 speed manual transmission, not much info online. Is it borg warner? Allison? what is MMO 6 speed?

I read other forums and they all seemed to call it a mm6? made by a company named tremec?
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post #2 of 3 (permalink) Old 01-14-2020, 04:17 PM
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I thought the 6-spd manual behind the kittys in the topkicks were Eaton.

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post #3 of 3 (permalink) Old 01-15-2020, 01:08 PM
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MMO might have been the RPO code.
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