Hi Norm,

The above photo shows the Boss which is in most cases normally solidly fitted to the lower end of the crank, and then has the blade Carrier just bolted up to it. In this case the Boss is welded to the carrier as shown and it has a single 14mm security bolt go through the Carrier / Boss and into the crank end that has a key way in it.

In the case of a Victa you just undo the single bolt (or in some cases 3 small bolts) and the carrier drops straight off leaving the Boss attached to the crankshaft, while with the Greenfield it's not like that.

Hope that this makes sense to you.

Cheers,
BB.

I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.