F350 where do I jack from? / would this plan work?

Gotta love my wife, towing her horse behind the tc she had a blow out on I5 near the grapevine. She was solo. I had made sure we had a 12 ton bottle jack 30" 1/2" ratcheting torque wrench proper extension and socket on board plus a full tool kit. Inner dually went, half tore off the fender. she changed the flat, unbolted the fender and was on her way in just over an hour