Even though the spindle to spindle arm had been broken and welded before, I think that maybe the bolt in the quick attach frame made interference for this to break  . I have always put the front bolts in the quick attach to prevent wear on the pins. So I just installed the front bolt only, but sometimes I've had problems getting them loose because the bolt or nut spins on the inside  .
Anyways here are some pictures of the axle rotated clockwise showing interference with the bolt and then the final solution. this way it won't hit again.
20160716_125107.jpg 20160716_125644.jpg
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Steven
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127 NF, spring assist, 36" IH Danco BB-36 snowthrower, 42" mower deck. CW-36 snowthrower, 42" NF blade. QA42A blower, 126,127,149,1720.
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