To have a replacement for the 600134 we can use the 600633 Wishbone rear L+R 811 2.0
There are a few things you need to mount different then normal then.
You need to change the original upright from the left to the right and the right to the left.
The shocks need to be mounted at the other side (rear) of the shocktower.
And you need to change the antirollbar to the wingmount, if you have a old wingmount you need to replace it with this part 600441 Wing mount set low 811
Then you can run the car again.