Hi all, I have an issue which im hoping someone can help me with.

recently I havr noticed a knocking sound coming from the reason this could be from.the diff or the suspension, the car feels very twitchy from the reason but I feel all the bumps in road.

also feels like the car is digging in from the rear like its dragging if that makes sense. Unsure what it could be hopping its not something major wondering if anyone has had something like this before.

cheers for all your help

 

Sounds very much like the age old rear strut problem. If you search the site you will find plenty of info about it.
I've had to change two of mine and it is an easy DIY job. No special tools needed.

 

+1 . I put two sets of rear struts on my old WRX 300 & the Bilsteins on the rear of my RB also failed too before they actually solved the problem with reworking the bearings in 2010.
Subaru used to honour the fault & change them as they did with mine but I think it depends on how helpful your local dealer is.......