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Allis 300/400 series spring trip blade

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Is this blade for a 300 series only or will it fit on a 400 series as well? I remember reading that how the snowblowers mount was different, but unsure about the blades? I looked in tech tips in Macks manuals, they sure do mount different, but will it fit?

spring trip.jpg

Thanks in advance.


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Its definitely for a 300 Series and the parts manual for the 400 Series shows a normal RBT style blade, which I have had mounted to a 416 in the past. I think the 400 Series does have the mounting holes in the frame for the attaching plates. Its possible that the newer style front axle may interfere with the 300 Series subframe.

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