Product review (3 stars): Aerokroil the nut !
I haven't received yet.  Ordered on a Wednesday and paid extra for overnight delivery it is Saturday!!!  Wanted to comment on the nut removal.  Get some
 http://www.amazon.com/Kano-Aerokroil-Penetrating-aerosol-AEROKROIL/dp/B000F09CEA/ref=sr_1_1?ie=UTF8&qid=1459010063&sr=8-1&keywords=aerokroil
and spray on the nut.  This is the best penetrating oil known to man !Save yourself some pain and buy the $15.00 wrench and Aerokroil.  Spray some on and let soak in about 30 Minutes.  Since the nut is Aluminum and the washer and Shaft are Steel Or Stainless there was lots of galvanic corrosion on the nut.  Hit lightly a few times in the tighten direction first then begin tapping in the loosening direction (Left Hand Thread).  I used a 2LB Sledge hammer and the $14 washer wrench after soaking took about 8-10 hits to break free.