When I'm rotating the tires (every oil change) - admittedly, I'm not UNDER the car for a particularly long time except for the drain plug - I jack up one side or the other at the front, with a floor jack and a loose wood block (2x4) right under the factory jacking hole - where the rubber jack pads would be if they hadn't fallen off or crumbled. Then, I put a jack stand under the front... well idk what it is, just inside from the wheel, maybe the spring perch? Something stable in that general area. Nice flat surface in the same place on both sides. Then I go around, put the other side of the front up the same way. Then, I jack the back by the differential (NO block of wood here, it fits perfectly on the little jack plate anyway) and generally leave it up just like that while I rotate the tires since i'm not actually under the car during that process anyway.

It's never even tried to let go that way.

**EDIT: It probably isn't the spring perch. But it's whatever that nice flat surface that fits the metal jack stands so nicely is - the jack stand probably sits three or four inches towards the center of the car from the wheel's inside rim.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL