Early allisons same internally as 2015/16?

Jakezed22

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Dec 2, 2016
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I understand sensors changed going to the T87 controlled allsions, but can an older allison 6 speed be used if the externals sensors are swapped? Or is there other changes internally?
 

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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Phoenix Az
11-16 should be the same beyond what you have stated. LMM will need a valve body swap/internal harness to make it simple. might be something else im missing
 
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