70 degree night at Greatlakes Dragway in WI. GTM 147 makes 3-1/2 passes. We started with low 12's as novice straight liners trying to figure out the best launch process. GTM is 667 HP with G96-96 transaxle, cryo'd gears, FFR axles, vette hubs and 13.5 wide PS2's in the rear. At about 6200 rpm in first gear came the familiar bang and the not so familiar coasting. Name that failure?