ART - I remember you posting the pic's of those 'Stones but wasn't sure which tractor they ended up on. You REALLY need another set on one of your tractors though! Maybe a pair of 26-12.00X12's? I have two of the three possible sizes, 23-8.50's on the 72 & 26-12.00's on the 982. I still need a pair of 23-10.50's but don;t have a tractor for them now. I'd like to find a pair of 23-8.50's for the 70 but they're REALLY hard to find but maybe a pair will turn up some day.
PAUL - Yes, coffee's all gone now. Fun weather we're having isn't it? A record 57 degrees predicted today, old record was 53 in 1914. 20 tomorrow, and NINE on Thursday with 2 to 5 inches of snow tomorrow night. Yeah! But we need more snow, all that's left around here are the deeper drifts now about 3-4 inches deep.
HARRY - CaCl was popular because it was so heavy, and kept the water from freezing. As long as it never gets onto the steel rims all is good. But just like antifreeze, it's tough to get off once it's there. Tire data books I have show 3-1/2 and 5 pounds of powder or flaked CaCl per gallon of water depending on weight required or coldest anticipated temps, Valve stem and 90% tire fill for weights.
I'm not positive, but I "Think" the 450 FARMALL Dad had between 1964 & '68 had fluid in the new 15.5X38 GY Super-Torque tires it had when he got it. They could hold up to 66 gal of straight water or 53 gal plus 265# of CaCl for 707# of weight per tire. It pulled pretty good with no wheel weights, the tires may not have been full of fluid but it had to have had some. Those Super-Torque tires were an OEM-Plus grade of tire, deeper, longer, heavier lugs than OEM grade set at a 45 degree angle, and they "Zig-Zagged" for reinforcement. The OEM grade GY was the Power-Torque, had a 25-30 degree lug that was thinner and a little lower but still zig-zagged. Dad put a set of those on the 4010 without fluid that came off the neighbor's brand new 4020 when he put new Firestone Deep Treads on his new tractor. Those were OEM-Plus grade too. Neighbor never ran duals on his tractors back then but Dad always did. The extra set of tires really helped with traction when doing fieldwork, also made the ride much smoother at high speeds. That was a real bonus when disking spring plowed ground.
Just like CC's, even large tractors struggle for traction with the land tire when plowing. We almost always ran a dual on the land wheel when plowing. If not so much for the extra traction from the tire, the extra weight from the hub, wheel & tire, and the smoother ride.