Jacking points when using a conventional floor jack?

[OldPhart]

I think the jacking rails have the same issue as with my ZL1 pad and a scissor jack. I think I solved the problem by taking a 4" x 4" by 2" piece of heavy wood, 2 x 6 cut down. For the pad I measured the flat part and went down 3/8ths deep. Then flipped it and cut out where the scissor will fit. Will finish the cuts today and try it sometime this week. Will post pics if this works. My only fear is that the cars weight will crush the wood.
I was looking at scissor jacks in the store and they all seems to have the same top that sits around the pinch weld to hold it firm. Again, a flat surface pad and jack that does not have a flat surface could slip while changing a tire on the road with uneven surface.

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[OldPhart]

I’ve used pieces of wood for years on my vehicles and it’s worked great. You can even get wood like this and cut it to size... Bruce

 

[kz]

This is not accurate and I would not advise anyone to jack (scissors or floor jack) from just “anywhere” on any Mustang pinch weld! By doing so the owner risks folding over the pinch weld, which will create not only an unsafe jacking instance but will leave the pinch weld bent.

There are only (2) specific areas of the pinch weld under each side of the rockers as noted in the image provided by bjstang (showing under carriage and jack points). Those are the only areas that an owner should attempt to jack the vehicle from the pinch weld IF they do not have any aftermarket jacking rails or jacking plates affixed to the pinch weld,

If someone where to try to jack anywhere on the pinch weld, say like the middle under the door, there is a high probability that if doing so WITHOUT jacking rails or jack plates that damage could be caused to not only the pinch weld, but the rocker itself,

Ever look under a vehicle that has been jacked incorrectly?

Be safe....

Haven't read such nonsense in a while here. The reason for jacking point being where they are is to balance the car when jacking and nothing else. Anywhere on a pinch weld is fine. No additional pads or rails are needed, there are millions of cars (since most if not all unibody ones have pinch welds) out there jacked every day without them and they are just fine.
Only reason I use it ZL1 pads are to not damage rubber blocks on my Quickjack.

 

[HoosierDaddy]

If your floor jack goes 18" high, Jack up the rear under the pumpkin, insert jack stands under read pinch weld spots. Done

Not everyone wants the risk, no matter how slight, with doing that. For a live axle car the pumpkin and axle tubes and mounts are designed to support the weight of the car. For an S550, the pumpkin does not support any load and the bolts that hold it to the car, are to support the weight of the pumpkin and hold it in place. Those bolt are not designed to support the weight of the car. Sure, anyone can get away with it....until they don't. Not saying anyone shouldn't chose to take any risk they want to; but good to be aware.

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