Transmission clonking

Hi all, I have a 300TDI auto at lowish speed going on/off the throttle I'm sure I can here the gearbox or the transfer box making a clonking noise.I've checked the hardy spicer joints(and greeced) and fitted a new rubber joint on the rear prop. and still it does this.
When the rear prob was off and diff lock engaged I noticed that there was a lot of play buy moving the tranmision brake drum.
How would I know if the chain or a gearbox shaft is worn.
Also can this be fixed buy removing the transferbox with the gearbox in situ.

A smallish clonking noise is quite 'normal' for a Landy, you gotta remember ther is a lot of gears and linkages, each one would only need a few 1,000's of an inch and it will all add up to a lot of play.
That's why you never pull the handbrake on when it's still moving, it can do a lot of damage, and also when on a steep hill, having stopped on yer footbrake, if you apply the handbrake, and release the footbrake, it will roll forwards a few inches !!!!

check your A frame ball joint - that can cause that too.

I was just going to say that !! - on my wife's TDI200 it used to clunk really badly, had the A frame ball joint replaced and now she's as quiet as the grave - so is the car, bum bum !!!

Make sure your hi lo range lever is fully engaged! mine clonks like an Irish dancer in clogs if you haven't pulled the lever fully back into hi range!

I also get a loud clonking, if I go underneath I can re create it by turning the prop's it sounds to me like I have play in the transfer box and in the diffs.

Any advances on this?

James said:

I also get a loud clonking, if I go underneath I can re create it by turning the prop's it sounds to me like I have play in the transfer box and in the diffs.

Any advances on this?

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just hit the nail on the head mate, youll always get that on a 200, i have about 1/4 turn on mine of play!