I helped a guy once when his one side jack failed and the front of the 5th wheel trailer nosed down. I used a 4x4 on a 5 ton floor jack and put that 4x4 right at the pin and pushed up allowing the nose to lift so we could get some other boards under the front frame work near that failed jack. He was able to then dig a hole under that failed jack to remove it and get it rebuilt. Where in Arizona are you?
Stacey Frank
2016 Tiffin Allegro Bus 40AP
2019 Tesla Model X
2015 Cadillac SRX we Tow
1991 Avanti Convertible