Hello. I searched on this forum but couldn't find a topic about this. I recently put a new clutch in my 96 civic and started it up without tightening the axle nut. I placed in first gear to see if the cluch and tranny works. I heard a light thud and stopped the engine. I looked down where the axles where and the splines came out a bit.

It popped out a bit but luckily my axle is ok. So now I'm trying to push the drive axle back into the transmission and it won't seat all the way in. Did putting the tranmission in 1st gear lock it up or something?