This is what happens to 3rd gear in a Hemi 18 spline 4-speed when you have too heavy of a car and too much power. My son's just broke two days ago. It has absolutely nothing to do with the clutch......
68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!