You will have to relieve pressure off both pistons and then straighten out the slide out. You might be able to get enough people to push on one end. You might have to use a come-along if people cannot do it. This happened to my dad's Magna once time.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7