In the Daytona garage area at night preparing to change out the rear axle.   The 4:56 proved to low a ratio for Daytona.    The engine was howling a redline (7200 rpm) most of the way around the big oval portion of the course.   Bob made a few calls and located a 4:11 rear at a yard in Jacksonville.   We made a dash in the Dodge camper, retrieved it and set about swapping axles that evening.  

The 4:11 brought the revs down to 6800 in high gear without noticeably affecting top speed.

John Legette's Ford van is at right.

Photo credit - ?, possibly Bob Theall