clunk clunk clunk

[chriseunos]

Hi guys, having this problem this afternoon. Did a hard acceleration from 1st to 2nd gear, heard a boom from the back. At first i thought its the exhaust misfiring or something. After the incident, whenever i want to accelerate quickly or turn quickly, i heard this thumping sound from the back. The car runs fine if i baby it. Any ideas? Before this, i've been having a problem where at 2500rpm, my gearknob will vibrate even "more" than usual. This occurred after i did a highspeed run on the highway and i felt that my gear shifting is not as smooth as before, it seems that it got "tighter" and bit harder to shift in between gears.The vibration can be felt even when its in neutral and stationary, whenever i rev it to 2500rpm, it will vibrate and it can be felt on the gearknob. Its a bmw E30/M50 mated to a getrag 260 with a 3.73 LSD diff. Thank youChris

 

[evilnickwong]

That first problem sounds exactly like when the CSB (center support bearing) on my driveshaft when kaboom.

 

[chriseunos]

hmmm, i read few threads before and they said the exact same thing, need to send in for investigation