Rear Lower Control Arm Bolt Size?

Hi - new member here. Recently purchased my first Mercedes, 95 W140. Working on restoring a few items and currently converting SLS to non SLS OEM components. During the swap found the drivers side lower rear control arm bushing was blown out too. I only had a 19mm handy today - what is the bolt/socket size for the lower control arm and the accompanying nut? Looked like maybe a 21/22mm? Thanks.

Hi - new member here.

Recently purchased my first Mercedes, 95 W140. Working on restoring a few items and currently converting SLS to non SLS OEM components. During the swap found the drivers side lower rear control arm bushing was blown out too. I only had a 19mm handy today - what is the bolt/socket size for the lower control arm and the accompanying nut? Looked like maybe a 21/22mm?

Thanks.

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