August 21, 2013
The lube dam on the output planetary in GM 6L80, 6L90 transmissions holds lots of gunk and metal shavings, especially after a converter failure. It's critical the planetary be cleaned during rebuild to prevent shift problems and comebacks, but separating the OE dam from the planetary can be difficult and time consuming. Watch this video to learn the quick and easy way to remove a dam using an arbor press and install replacement Sonnax output planetary lube dam 104584LP.
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