15.5 LML T87 Stock file

In need of a stock file for a T87 LML truck. Just purchased the truck and the file in it is locked and does not shift well at all. Tried to flash it with GM stuff today but due to it having the latest OS already, even with repair and reprogram it kept blocking out. It is OS 24274899, 3283 Trans, 6516 Diag, 6518 System. Any help would be greatly appreciated!
Thanks

You should be able to order any type of stock file from Starlite. Just go to there website, look for LML stock file, type in the vin, and write a note saying you want only the trans tuning, they should send you a new file via email within 20 min during their business hours 8:00-5:00 PST


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Originally Posted by z71ecb

In need of a stock file for a T87 LML truck. Just purchased the truck and the file in it is locked and does not shift well at all. Tried to flash it with GM stuff today but due to it having the latest OS already, even with repair and reprogram it kept blocking out. It is OS 24274899, 3283 Trans, 6516 Diag, 6518 System. Any help would be greatly appreciated!
Thanks

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Attachment 23198

Here you go

Thank you so much I appreciate it!!