I found an interesting piece of kit on the Ravensblade site.
It seems to be a sort of plastic washers to be put between the bushes :

See here for some info :

http://www.ravensblade-impreza.com/m...ckbushing.html

Does anybody have a part number of this ?
For a classic of course...

Creepy

 

Done this mod, and the bushes in the diff casing too.
Go to www.whiteline.com.au and buy some. I don't think anyone in the UK stocks these.
NVH WILL increase i assure you, but the violent 'tramping' of the diff/cage will be vastly reduced when doing drag starts.
The location shown is very easy to fit the parts but getting the big M12 bolts back in is tricky.
911