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Old 09-29-2017, 01:30 AM   #2
kwmech
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,391
Re: 75 GMC motirhome TH400 rebuild ?

How did a 27 spline output end up in a 1987 trans? Anyways, it can be done, but both transmissions will have to come completely apart. The output shaft is held into the rear planetary drum with a snap ring. I'm thinking the trans you are looking at is a 700 not a 400
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