[QLD] Vz cross8 ls1( auto problem)

[Helpme]

Hi guys
While driving along at a slow speed
It feels like the auto box( vz ls1 auto) slips out of gear ,put your foot down and you feel a clunk and off it goes.
Slight atm but wanto fix before it gets worse
Any info would be great
Needs a service ect ?
Cheers

 

[_R_J_K_]

When was the last time you changed the oil in it?

 

[Helpme]

When was the last time you changed the oil in it?

Just had full service today .
Still have the problem
Checked tail shaft ,its not that.
I have read about the rear diffs in these are the common problem causing the clunk?

 

[Helpme]

When was the last time you changed the oil in it?

Cheers for a reply to mate