Hi guys Ive got a 1987 Ford F-250 4x4 with a 7.5L 460. When I start her up theres a loud metal on metal rubbing noise. Seems to be coming from trans. Also theres a thunking on the floor where the 4x4 stick comes out. This issue seems to be stalling the motor and really dragging it down. Im not sure whats going on. Has a C6 Tranny also. Any Ideas? I can keep the motor running with throttle but the noise increases greatly. Just replaced starter and now looking into this. Thanks for the help!