clunking noise coming from the rear?

[mr_clubby96]

hey guys i have this clunking sound coming from the rear i noticed when i change gear from 1st to 2nd n 2nd to 3rd theres a clunk sound between gear shifts also when i down gear the revs drop nice n smooth until down to 30kms it goes clunk clunk there then car stops would anyone know wats the cause of this problem cheers

[buglemcdougle]

Is it Auto gearbox? Maybe your gearbox is on its last legs..........

[hako]

Get the car up on ramps and check the entire driveline for wear/looseness....it could be a worn centre bearing, worn uni's either on propshaft or halfshafts (presume you're IRS). Look for witness marks where the clunk has left a mark. Rear engine mount should have no movement. Then you move onto the IRS!

[mr_clubby96]

ok mate sweet no dramas ive got from 1 mechanic which thinks my diff is the problem but also seems unsure about the problem but im also looking into it more cheers guys thanks

[Surfwagon]

Is the car fitted with IRS and if so check that your diff cradle hasn't cracked which is a common VR/VS IRS problem.

[mr_clubby96]

yep it is irs ok champ il check it out cheers

[Surfwagon]

Do a search on here regarding IRS cradle cracking, has been covered before.
Cracking was in a RTA inspection notice for VR/VS IRS commodores for rego inspections.