How did you make them permanentAgree, money very well spent.
After taking possession of the Mustang, installing jack rails.
Owning 2 floor jacks, 4 jack stands. One real floor jack Hein-Werner 3T. The other a light weight imitation, and a number of years using all.
Now having the GT, with no way to jack front then rear. I was unable to convince myself that raising one side at a time, placing the stands . Was very good idea.
Quick Jack was the next best option.
The least hassle and the most sensible salutation.
If I were to have a dislike about the Quick Jack. That's now solve for me. Is the time it takes to get the blocks aligned and centered in the trays, and ramps centered to the jack rails.
Picture shows blocks permanently located. Only requiring the lift ramps to be placed under the jack rails.