If the clutch is completely failed, driving that bus without one might be impossible, as you'd have to start it up in gear. That would require a GOOD battery. I've driven several times without a clutch
One of my Roadrunners.......broke the clutch push rod and drove a few miles back home, just start it up in gear
Yamaha 650, rode up home some 50 miles and broke the cable got to ride it back again no clutch. Kick it out of gear before stopping, then start it up in gear
When I converted my 63 Chev to stick, I had no way of attaching the clutch pivot to the frame, so I drove it no clutch down to a fab shop and they welded it on. Finished putting the linkage together right there in their lot.
But a big heavy truck/ bus? THAT might be tough starting up. A hill would help LOL
