Clunking when accelerating What could it be/

[98GRDisco]

Ok this may have been asked in the past but i couldn't locate it.
Here is the situation if I stop and then try to accelerate fast i here a clunking sound what seems to be from the front of the vehicle, it also feels like something is loose and shifting when I accelerate. thought it could be motor mount they look fine look at the U-joint there seems to be no problem but there is some play at the transfercase (front shaft). What else might it be?

I have:
2" lift (blocks under spring base)
235/85R16 tires
HD Springs (Military Euro)

 

[joey]

Could very well be a worn output shaft, or the bearing is on its way out.

 

[98GRDisco]

How much is that going to run

 

[joey]

If you do the work yourself, around $100 and some hours of work.

http://www.roverparts.com/Nxt/search.asp?keywords=output&doSearch.x=0&doSearch.y=0

 

[tempestv8]

Generally speaking, the full time 4x4 driveline on the V8 will have a bit of slop in it, so if you stab the throttle after you've been off throttle, it will induce a clunk. Can't be avoided. Land Rover did not implement "anti shunt" control on the V8 like they did with the diesel TD5 motor.

 

[wolf]

I always thought a bit of 'clunk' in a Landy was a good thing? There are a lot of parts in play between the engine, tranny, transfer case and both shafts to both diffs. Frankly, squeeky tight would scare me that something had seriously gone wrong or seized.

 

[Disco Mike]

If you lube your u-joints at least 2 times a year and one of the output shafts is not warn, then what you are hearing can be very typical Rover clunk.

 

[tempestv8]

Mike is absolutely right. There's always some "slop" in a permanent 4x4 system. Other makes also have this trait, so it's normal.

You just learn to depress the accelerator more gently instead of blipping it.