Originally Posted by RedHeartbeat Not shifting is a tune issue. Couldn't agree more!! Nothing Dr. Allen cant fix. Keep the 4.10's!!!!!!!!!
My Ride: 2006 Chevy Vortec Max, LQ9, 4X4, no cats, 50 Series Flowmaster in factory pipe, 20"s, C.A.I., Custom tune by Dustin at TRT Performance
Forum Rules