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Message: [QUOTE="ckrueg, post: 1202695, member: 12403"] When you tune it it asks if you want to change the shifting. The schedule 1 tunes lock up in 4th and 5th while the schedule 2 locks only in 5th. There is also the option of low med or high that determines when the truck locks the converter/shifts into 4th and 5th for each schedule. So schedule 1 low would shift at the lowest rpm and lock the converter in 4th and 5th, schedule 2 high would shift at higher rpms and only lockup in 5th. Hope that helps. And I would update to the latest software and tunes, I think the last update was about a year ago so you probably don't have the most up to date tunes. [/QUOTE]

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