RCI Slider Install, Impossible Bolts?

I’m currently in the process of trying to install RCI sliders on my truck, but the darn bolts on the bottom of the frame are impossible?

I’ve soaked ‘em in PB Blaster for at least 16 hours, and they only budge a tiny bit.

And I’m starting to strip one of them (pictured).

Anybody have similar issues installing sliders?

 

Nevermind. Son of a gun was hard, but nobody’s keeping me from my sliders.

 

Rachet strap placed around both frame rails to compress and take load off the cross member helps get the bolts both out and back in.

 

@WestCoastBestCoast, nice job with the extraction, you should be a dentist !!!

 

Well done!