I have talked to you on the phone several times, my friend Shane at Kilpatricks has also talked to you about my truck. I just had Kilpatricks freshen up my trans--2005 Allison, five star, co-pilot, sun coast clutches. My truck will not hold 5th gear under full throttle. The truck goes to shift into 5th under wot and it just picks up rpm. What can I do to fix this? I have your c3 oiler installed.