You are correct, but it's easier to punch 68 markers in than 68 tail lights.I thought 67 had no side markers and 68 had the round ones.
3 hours, 32F, blowing 6" of mashed potato snow. No clog ups and chute still slick when done.. used a whole bottle spraying chute, paddle wheel, auger and shell. Was on sale for $9.99 cdn. Going back tomorrow to buy a dozen bottles.Let us know how the turtle was works out. I spry mine with silicone, but it doesn't last long.



