WOW !, Would love to see pictures of this. My first School Bus ride (when in Elementary School) was in a 1955 Chevy 6700 series School Bus. Seems like it was either a Perly A. Thomas (Thomas Built), or Hackney body. Had rode in a spare bus alot that year that was a '49 Chevy, just can't remember which body, was on which Bus. Are your wheels 5 lug front, & 10 lug rear, or 6 lug front, & rear? 7.50/20's don't sound right for a 6700. Would have more than likely been 8.25/20 originally. We still had a few late 50's, early 60's buses at the School Bus Garage I just retired from, back in 1981 when I started.
