A little while back i noticed that my truck wasnt shifting on the straight at my local track but i didnt think much of it because its a small track and i rarely went into 2nd anyway. But i came home and did some runs in the street and it would not shift. Its tuned well and gets high rpms but now it wont shift. I hav not played with the shift adjustment in the trans nor the slipper. Both are still at factory settings. I looked at the clutch shoes and they look slightly worn but i dont think enough to affect the shift point. I wanted to know if anyone had any ideas of what i should try first before i start messing with the trans and slipper. Thanks!