[BigFatFlip]

Originally Posted by fuddbutter

Anyone know what size the bolt is? 30mm or 32mm socket?
Mine has been doing this for 2 years, keep going back to Subaru for them to sort it, but keeps doing it, going to just fix it myself but need to go get a socket, rather get the right one than a few to make sure.. (I did measure it with a tape measure, said 30mm but you know)

You will need a 32mm socket. As others have mentioned, its recommended that you replace the axle nuts instead of just re-torquing them.