Having an issue with my jack shaft, half shaft or whatever yall call it.... was driving my car pretty hard the other day, and while shifting into second, i heard a clunk then nothing. Speedo went up like the car was gaining speed but it wasnt moving.. at first I thought I messed my trans up upon investigation I looked at my passenger side axle while the car was running in gear and it just spins the half shaft nut not my passenger side axle.. now where the axle meets the half shaft there is a little play, and when spun by hand the axle spins but the half shaft stays until I pull out or push in on the axle then it catches the half shaft and spins it.. anybody know what this is? Is my half shaft gone or is it my axle was thinking maybe I wore the splines out like I said it's almost like its stripped out unless I push or pull then rotate.. almost like it's not in all the way maybe but idk what would cause that I'm at a loss trying to rack my mind around it