Jack the front of the car up. Place jack stands underneath the front subframe (not on the suspension). Remove the front wheel(s). Place a floor jack under the balljoint to support the control arm. Remove the nut on top of the strut shaft (goes through the strut mount). Lower the floor jack to allow the strut shaft to come out of the strut mount. The floor jack is needed to keep the spring from fully extending.

Replace the strut mount, raise the floor jack, replace the nut on top of the strut, and put the car back on the ground.

It's a straightforward job, but might take a bit longer than 10 mins. (max 1/2 hour per side).

Steve.

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner