I have an older Toro model 521 snowblower and I was wondering if this wheel set would be compatible as areplacement
Antego 13x4.10-6 Snow Tire & Wheel Assemblies for Ariens 07101238, 2-Pack
The original wheel set is marked as 12 x 3.5-6 but I can't see any reason why 13" would get in the way of anything. The shaft hole is 3/4" in diameter. The total shaft length on the wheel is 4-7/8" where the inner side of the wheel shaft extension extends is 2-1/2" from the inner surface of the wheel and the outer side wheel shaft extension extends about 3/4" from the wheel surface. The wheel width makes up the difference of the total 4-7/8" shaft length. The shaft pin hole on the outer shaft extension is about 3/4" wide and located about 3/4" in from the outer most surface of the shaft extension.