Quality U.S. made 3/8 inch drive 7mm ball socket hex wrench
This will hold the top of the strut and keep it from turning when removing and installing the 22mm nut.
W201 W124 R129 Front Strut Holding Tool
$5.50Sale
$3.35
SKU:
TUL-7MMBALLHEX 
Product Details
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$26.00
W201 W124 Front Shock Strut Top Nut Special Wrench
Also works on R129 convertibles
When replacing the front struts ( shock absorbers ) on a W201 W124 or some W129 chassis it is frustrating and time-consuming trying to remove and replace the big 22 mm top nut on the front struts ( shocks ).