Good that you asked. I recall now that the new set of arms for the rear uses the 12 point star socket (I forgot the name but its not hex). I didn't have it but got by with a 6 point. I used a half inch socket set which I think is necessary for suspension work because of the higher torques involved. The longer ratchet give better leverage and if you don't have pneumatic you will need them. I also use a Brittool torque wrench to finish up.

You can see if you have all the tools when you buy the replacement arms. The bolts are included. If they come with aluminium sleeves, you don't need those. Depends on which arms you buy.

__________________
1992 124 E200 (Euro)