Creaking from rear

[bonbon]

As the toy ages, 478,000 km, getting all types of new noises.
Any insight into creaking sound when load is reduced - for example getting out of the car or exiting from speed bump?
Hint - if two people are in the car it disappears. (Larger load)

 

[Zephyr]

Most probably shot diff mounts.
worst case trunk rivets popped.

 

[bonbon]

Not the rivets. Will check the diff.
(recently changed the auto transmission mounts)

 

[bonbon]

Most probably shot diff mounts.
worst case trunk rivets popped.

ChatGPT bets on Rear trailing arm bushings.

 

[bonbon]

Ok - making progress.
Got to the bottom of the "getting in and out of the car" squeak. That is mild corrosion in the handbrake. Drove 100 yards with the handbrake pulled up partially, and that's gone.
With respect to the squeaking going over speed bumps and roundabouts - I greased the rear upper and lower spring pads and also the bottom of rubber mountings 33311090946 and the noises have gone. I'll get to the bottom of it..