Is that the single ram model of slide?
If so it's prolly like mine (AL-KO model GSO-48829-1), and I'm surprised that your sheared bolt is a grade 8.
Some idiot at the factory put a SS bolt in mine which broke within a year. I managed to find a Grade 3 in my tool box and got it working for a while. When that sheared all I could find was a Grade 5 bolt at the local hardware store. When that sheared it took out the whole shaft assembly. By then I was out of warranty so ordered the parts from AL-KO (now owned by Dexter):
1246585 (shaft) $27.02
1245423 (bolt) $1.10
1245234 (nylon lock nut) $0.10
1245474 (clevis pin) $2.19
And had a mobile RV tech put it in for me. Which took a lot of work and swearing as the parts were pretty well rusted together. Anyway, since then, several years ago, it's been working fine with the new (Grade 8) bolt.
My email contact at Al-Ko/Dexter back then was
christinahaley@al-kousa.com
Good Luck!