What size socket do i need for the rear diff drain & filler plugs please

 

You need a 13mm square drive drain plug key or just use a 1/2" drive ratchet.

 

Tried a 1/2" but couldn't get it undone

 

Nice guide here my wagoning friend.

How To: Changing rear diff oil - IWSTI.com: Subaru WRX STI Forums

 

Thank you see they use a 1/2" drive as well, maybe i need to jack the car up a bit more so i can get good leverage on it

 

Nice Service Manual to down load here too if your having a little play.

Subaru_Impreza_WRX_2006.rar

 

Already have one

 

Wagoneers are so professional

You doing a change ? I am going to have a go in the summer along with the rest of the low mileage servicing.

Got one of these to fit to my diff, lock it right up.

 

Just want to check the level, i see that bit of bling on your other thread, very nice

 

Once again Xtreme Scoobies p*** me off, they were the last ones to change my diff oil a couple of years back but do you think i can get the filler plug undone, i've got the correct socket and a long torque wrench but it's so tight it's not turning the slightest cheers Xtreme for doing the plug up so f***** tight