drivetrain issue

[m5sjs]

hi i have a 2003 x5,i think i have a drivetrain problem,when i am driving in traffic ie stopping and starting there seems to be a split second when i press the throttle until the power hits the ground, also when this happens there is a dull thud noise coming from under the car mybe from the middle to front area,also when i select reverse gear there is a click or clunk noise which i don't think should be there,i have replaced the rear subframe bushes so that is not the problem,i put the car on the ramp to see anything obvious,i noticed that the output shaft from the transfercase that connects to the front diff shaft there seems to be play from the connection between the two,is that normal,mybe someone could let me know a problem area to look at,i hope i have made sense,thanks for your help,

[JCL]

Check the chain in the transfer case

[Roadkill]

also, check the guibo. it's the rubber flex disc that connects the transmission to the driveshaft.

[bastereo]

The front drive shaft splines going into the transfer case are a common failure point along with the chain. However when either of those fail you normally get grinding type noises I think

[m5sjs]

Thanks all for your replys, will check the chain out and the flex disc on driveshaft,Cheers.

[SlickGT1]

How about engine mounts. My driver side was destroyed at 77k miles. Same delay off the line. Clunk when going reverse. Fairly easy to test them. Search my name and engine mounts.

[m5sjs]

Thanks SLICKGT1 will check the mounts,cheers