After I blasted the tracks for my 1782, I made new rollers out of round bar. They have to be the same diameter as the original rollers in order to roll instead of the track dragging. If they are too short, they will turn sideways in the track and if you don't put the large chamfer on them, they will bind on the bend radius where the track was formed.
If you have a pair of calipers, you can measure them on the highest spots you can find to figure out the size. I want to say they ended up being an even fractional size. The tubing you used probably has a seam that doesn't let it roll the smoothest either.
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2 Originals, 100, 105, 125, 1450, 1200, 2 IH 982's, 1211, 2072, 2-1864's, 1782, 3 - 42" front blades, 3 Haban 54" blades, Haban sickle mower, BB36, QA-36A, 42" IH rear blade, 42" IH landscape rake, #1 tiller, #40 box blade, 59M shredder, #2 cart, International 3312 push mower, International 250 power washer, 1952 IH refridgerator, 1971 IH 1210 3/4T 4x4 truck
  
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