Clunk noise auto gearbox issues?

[zai]

Hey lads,

I have this common clunk noise in my gear box when I shift from N to D or even stronger form N TO R.

I have this noise since I bought the car, I drove nearly 30 000 ks and gearbox still run wells when driving = no noise and quite smooth.

I often hear such noise on others car such commodore or others cars with auto gearbox.

After differents search on internet, I wonder what could be the causes.

Is it normal (I though it is) or is there: an internal gearbox pb, Universal joint, drive shaft, engine mounts.....?

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[VNexecutive]

could be a uni joint, they make that noise. is it a high pitched ting or a deep clunk?

[MasterOfReality]

Mine is a deep clunk.

When I got the box serviced at 130,000km the bloke shrugged his shoulders and said 'they all do that'.

[zai]

quite deep yes!

I tried to check the 2 uni joint on the shaft and I don't have any blacklash . Just outside the gear box, around the joint, perhap's 1mm clearance.

I read so differents stuffs on internet = It's quitte normal, or it's a pb. So that's why I ask the question.

[zai]

I check today with the 2 rears wheels on jack. Nothing from the rear axle, uni joint ok. This noise is just between the shaft and the gearbox, like a play in a bearing.

Any idea what is this part?

[levymetal]

just putting it out there that mine does this too

[h0Ld3n`VN]

mine clunks real bad its getting worse which feels like the axles are going to snap off
does that n to d clunk
n worse n to r
does 2 tyre marks
lags on take off
it hasnt lost performance but clunks like a slut

when the mechanic checked mine he put it on a hoist, it was in neutral
he turned the tailshaft quite abit till the wheel started moving had a massive gap
you cant really tell when ur rear tyres are on the floor
he said the spider gears the diff centre or some bullshit needed changing

but im changing everything to be sure along with the 3.45's

[purrVN]

yeah could be give in your spider gears in your diff... but like previously said, mine also does it, i think your mechanic has the right idea lol