1999 GMC Yukon Denali 4x4

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strutaeng

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You've got a GMT400, actually...

Why are you asking that? Have you tried cranking it to see what happens?

That may have been the first years of the BCM, IIRC. I recently parted out a GMT400 2000 K3500 OBS truck and those did not have a BCM. Your body style are the only GMT400 with a BCM.
 

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