The jack pad adapters are primarily used for people that are swapping wheels or are at a shop getting a tire repaired or changed.
I have customers that have the need to rotate their tires and the solution to the problem is really very easy, two jack pads and two floor jacks. Harbor freight sells than1.5 ton low profile aluminum floor jack which works very well and they are very inexpensive.
Then I have a lot of people that buy 4 and have their own lifts.
To address the fitment question, my kack pad having the rubber bottoms give an extra security of density intrusion which gives just enough “give” to allow the jack saddle a grove which holds better and still give ample gap between itself and the cars factory jack point as seen in the picture above.
Floor jacks work best when you can get the saddle as far inward as you can on the lifting surface to gain a better inward mount as floor jacks move under the car as it’s lifted as long as the jack and it’s mount area allows.
The pads I make were made from many months of working in the field and seeing why works best from the rubber density to the 3d material and even the magnet draw.
These are not just something a company made on a whim to add to their collection of parts, these are speciality tools.
I personally think the round design works well but when you really look at design, form and fitment my product gives a better and a safer solution.
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