Gearbox clunk!

**jayray377** · 16th June 2014, 08:25 AM

Hi all, just drove into work this morning (after a weekend of the car sitting idle) and noticed a reasonably loud clunk when changing from drive to reverse. I repeated a few times with similar results. The auto was serviced around 2k ago so assume the oil level is fine but I will check tonight anyways.
Any thoughts??
Joel

(D2 td5 auto)

**Outback 1** · 16th June 2014, 09:27 AM

I WOULD BE CHECKING THE FRONT AND REAR DRIVESHAFTS THIS IS SOMETIMES A SYMPTOM OF PROBLEMS THERE

**JDNSW** · 16th June 2014, 09:41 AM

As Outback says. Check particularly the U-joints on the front prop shaft.

John

**jayray377** · 16th June 2014, 10:25 AM

Thanks guys.

**singlecell** · 16th June 2014, 05:07 PM

Now I may be wrong, but if the car isnt moving, and the clunk occurs while changing between D and R. The drive shafts would just be sitting there doing nothing. How are they to make a noise?

**Outback 1** · 16th June 2014, 05:33 PM

each time you move between drive and reverse you take up the freeplay in the driveline

**JDNSW** · 16th June 2014, 09:29 PM

Originally Posted by Outback 1

each time you move between drive and reverse you take up the freeplay in the driveline

And if that free play is in a U-joint, an early, possibly catastrophic, failure is quite possible.

John

**Outback 1** · 17th June 2014, 07:00 AM

How did you get on

Sent from my GT-S7500T using AULRO mobile app

**jayray377** · 17th June 2014, 11:29 AM

Got underneath this morning. Bit of play in the joint, not much though, but unsure of how much is too much. Going to get it checked this arvo. Noticed a little squeak as well today, Have done a little reading and believe this may be a "tell tale" sign?

**jayray377** · 18th June 2014, 09:43 AM

Diagnosis, front prop shaft was just about to let go from the joint.
Getting it replaced with the Les Richmond heavy duty prop shaft

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