Here are photos of two jack pads I have, the first one, the one made from flat steel that has a pin on the bottom for the jack to lift on works very well. This one also works on most other flat spring steel geared aircraft, it is the one my friend’s son designed and is still made by my buddy. It has something very similar to thin cardboard for a pad for grip and anti-scratch. I have never had this one slip or cause any kind of scratching or damage. If you want one I can ask him how much they cost.
The other one only works on a 150 with flat spring steel gear, it is made with a tapper sized specifically for these aircraft. I purchased it on eBay about 20 years ago, I have no idea where you would locate one today, but I am sure you could build one similar if you can’t locate one. I do like this one and it works very well. However it does have a drawback, on occasion it gets stuck on the gear and I have to use a hammer to dislodge it and even though I have a piece of felt between it and the landing gear, it has scratched. Maybe some deer skin would work better.
If I could only have one out of the two…….I would choose the one designed by my buddy’s son because it has never caused any damage or gotten stuck. And while it looks like it could slip, it never has.
Eric Olson Portland, OR N7165F 1966 Cessna C-150F Troutdale, OR (KTTD) Hangar C1 John 14:21