Did a search of input shaft with no results so here goes. Just finished pulling transmission on 01 4x4 again. Cant remove torque convertor from transmission. This same thing happened 25k ago. Total trans rebuild with another dtt billet shaft. Truck is moderatly modified stage 3 inj, larger turbo, fueling box always on 1. Last time it happened was running empty entering ramp leading to interstate. This time was empty engine cold just leaving house at slow to moderate speed and when transmission shifted to OD it squeeled and lost all power. Has anybody else had issues with dtt shafts?