My 78 has full set OEM rallies and S/S trim & caps. Its out of rego, needs some TLC, but it has on front 225's that Alan Duress gave me, since the original tyres were R/S, but it looks like it has tramp rods on the rear, it appears, up at rear and down at front, (like a cat about to pounce) all these are at least 10+ years old and treadless. I just thought the car may be better standing up square on your old treads, makes it easier to push etc. Once repaired I would no doubt have new tyres all round, then again it may not be worth the trouble to remove wheels, then tyres, then tyres on, then wheels back on - not to mention disturbing the mice and chooks, when getting the car out and up the drive - more than likely with a steel tow rope. That tow bar/ball on the back does come in handy, I only know of two Vettes with tow bars - the other a nice red one with matching trailer.