need new cv joint 300gd 1988

Hello k4nda1,
 
Welcome to the GWOA and to our forum.

It is true CV joints are no longer available from Mercedes (M/B) dealers any longer.  It is ironic that M/B do not sell parts in kit form, i.e. take a clutch kit, usually consisting of a release bearing, clutch centre plate and clutch pressure plate. There is no listings of a kit, instead, each part has to be individually looked up to make up a kit.  Now some 'bean counter' at M/B; in order to move parts that otherwise would not has decided that the CV joint should be part od the driveshaft, hence one has to buy the whole part, obviously, more expensive on the whole to the customer.

I am providing a few CV joint and driveshaft specialists from whom some have definite  listings of CV's, some you have to enquire and the remaining can re-manufacture your old unit.

http://www.newdriveshaft.co.uk/what-we-supply/cv-joints/

http://www.carparts-direct.co.uk/?i=400&ModelDetail=Mercedes+G+Wagen+G460&ii=99187

http://www.driveshaftstore.co.uk/?gclid=CPvgx6jw7a4CFUQhtAodvU3hJA

From what you say above, if the lock nut loosens upon tightening then there is definitely a thread problem, you will need a new CV joint.

Note:  the CV, nuts and locking washer are different for the W460 and W463 models.  In relative terms, the W460 are marginally smaller in diameter, hence so is the tool to tighten the nuts.  These are over £50.00 for the tool, which can be got from the dealer or directly from other sources that supply M/B tools.

Remove the nuts from the CV and visually examine the threads on the CV joint.  The threads should be neatly cut not rough, indicating thread damage.  Put on one nut and wind this to where the rough threads are.  At that point attempt to rock the nut as you did, the wheel from a 12 O'clock and 6 O'clock position.  Should there be even a slight movement, it could confirm wear or damage. 

It could be, just thread damage where the lock nut sits and the rest being fine; should that be the case and allowing that there be space to fit one extra lock washer and a third nut, fit the third nut to see if the third nut will tighten.  Doing this exercise, once you are satisfied the nut is adequately tightened, check out the wheel bearing play, to confirm there is no damage to it due to the loose CV nuts.  Whist checking for the wheel bearing play, do check for any excessive play at the hub; play here would suggest king pin bearings need replacing.

A word of caution, if the nut has been tightened and you do have place at the bearing, do not try to tighten to take up the play, you may achieve to remove any play but this will not last long, the additional force will only serve to collapse the bearing cage resulting in total failure of the bearing.

I have not used from any of the sources I have suggested, if you are ordering the CV, do not automatically assume it will be correct, check it out thoroughly.

Cheers,

Rakesh

Hello Sati,

Use the lock nuts as is, on the G-Wagen, do not use the nut supplied with the CV. Check that the threads are the same though before stripping yours down.

You do not need to replace the seal holder, the old one can be re-used.

Otherwise the other listed parts are just fine.

One note. When you dis-assemble the hub, keep the shims as they are on the top and bottom king pins and re-fit them as you take them out.

Cheers,