Hey folks, i was just wondering if anybody on this forum is in need for a LMM ecm p/n 12617102 and willing to give a LBZ ecm for exchange. The LMM ecm i got is in perfect condition: not a scratch, no chipped connector an in good working condition. Its off a 2008 LMM C5500 Gmc truck. I'm not selling this ecm, i'm just looking to swap with a LBZ ecm! Thanx!