Quote:
Originally Posted by OldSkull
Apparently not me, but I ask and was tell he should fit, go figure! Many seller list their PTO been good for the 1872 and 2072 but it's not true, some 2072 used the 52-014-71-S crank and the PTO end is 2-11/16 X 1-1/4 not 1-1/8" like the 1872. No need to ask me how I learn that one...
Now I 'm wondering why the M18 in that 1872 got a 1" crankshaft   
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I believe all the mag 20's had the 1 1/4" crank, and the 18's had the 1" crank. I believe this topic has been brought up before by people doing this same swap.