A single 18mm nut and bolt secures the strut assembly to the lower control arm

Remove the nut with a ratchet while holding the other side with wrench

When re-assembling, this should be torqued to about 60ft-lbs, then tightened an additional quarter turn.

If you cannot get the bolt out, use a jack to lift the lower control arm such that there is no force on the bolt. A small hammer can be used to tap the bolt out, but be careful not to damage the threads!

When re-assembling, the jack will be necessary to align the control arm and strut to re-install the nut and bolt.