look at my driveshaft guys

 

notice that the connector is wearing away
i thnk that it is going to come off soon
but the main question is why is this happening
the previous owner wanted to sell his car because "the transmission was broken"
but it turns out that this connector was broken
the car was originally auto
and i did the auto to manual conversion.
for the time being i planed on leaving in the adapter things then i would weld in the real mounts later.
now the same exact problem is happening to me.
what could be the problem.
the only things that i was thinking is that there is a mounting problem.
since the other owner of the car was experiencing the same problem before the conversion, i was thinking that there is a mounting problem with the rear differential or the engine mounts.
give all the info that u can give. cuz i know very little

 

I say just worn out bearings. It is true if the driveshaft angle is changed, additional stress is placed on the parts, but I can't believe an auto to manual conversion would be that far out of alignment. You'll see it when trucks are lifted and the angles aren't change to compensate for the additional height. Put a used shaft in and check all the mounts, engine, trans, diff, and make certain rear suspension is in good condition.

 

i got an n/a driveshaft if you ever need one