[slk55er]

A perfect solution for me at least. I've tried various methods of using my floor jack for frequent tire changes (track events) but none have been satisfactory until now. I was about go go to a metal fabrication shop to weld up a"T" piece to fit into the hole of my floor jack and the jack pads/receptacles under the vehicle, but I stopped at Home Depot to see if I could adapt a piece of off-the-shelf hardware.

Lo and behold I found the perfect piece -- a 1/2" Top Beam Clamp ($3.98), by Thomas & Betts, stock number Z503. This piece and the other pieces I've used are shown in the photos. I trimmed off a piece (shown) from the Beam Clamp and the remaining piece fits perfectly into both the front and rear jack receptacles. I used a hardened bolt of the correct length (110mm) to fit into the pipe pieces I used.

You can see that this does the job of jacking while avoiding contact with the side skirts. Hope this helps.