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Saunders County Nebraska | Just had mine rebuilt at 180,000 miles . Guy said that was not bad as i pull AA trailers and lots of other stuff . $5,000 but what's a guy to do . The new 10 speeds sound worse than these old 6L90s and around double that to replace
Youtube has video on how to reset the Transmission control module might be worth a shot
Edited by plowpusher 12/13/2025 18:55
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GM 6L90 Slip in 6th