Occasional gearbox THUD

[tonyc280]

Now and again my gearbox THUD'S when changing down a gear, only when going slow and about once every two days or so. Any ideas what this might be Chappies ?. cheers Tony.

 

[SilverSaloon]

when was the ATF changed?

 

[tonyc280]

Its got full service history but can't tell from that when it was changed. Is it an easy job changing it ??? cheers.

 

[brucemillar]

It may not be your box. Check that the prop shaft donuts are good and that there is not excessive play on the shaft.

 

[DITTRICH]

It may not be your box. Check that the prop shaft donuts are good and that there is not excessive play on the shaft.

+1 replaced one 3m ago at 176k miles and big difference.

 

[tonyc280]

ok fellas will check doughnut as soon as i can and maybe just change the oil anyway. cheers.

 

[andy27168]

If the thud is only occasional, I would favour a gearbox oil and filter change, there is a HOW TO on the forum somewhere that explains it, also if yours is a 5 speed I would also replace the pilot bush as this can cause leaks and ATF ingress up the loom to the transmission ECU.