One more thing I feel compelled to mention in regard to the Black Bear tune... Your signature says that both of your trucks have 4L60Es. If that's the case, do not, I repeat DO NOT have Black Bear alter your torque management settings. I did and that was a major factor that led to my eventual 4L80E swap in the red '97. I had them zero out TM on my original tune and my factory 4L60E was dead about 500 miles later. Personally on a 4L60E truck I would leave your torque management AND shift firmness alone.