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Tranny overdrie

(2000 Pontiac Montana)
in Grand Rapids, MI on January 11, 2010
my 2000 montana has 140000 mi. on it
transmission works good just no overdrive, what could be the problem
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Popular Answer
on August 29, 2010
i work at a tranny shop and fixed this problem a few times. the overdrive drum has a short shaft at the end of it with very fine splines. after a while the splines wear out and strip, causing the drum not to spin. the tranny wont blow up, but i recomend getting it fixed asap because of the fine metal shavings in the tranny.
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