Swing arm ...again

I am sure you all know the Commandos modified by Ron : http://nortoncommando.com/start.htm
I just found a Ducati GT swing arm and I will install it on my bike (Mk2, laready modified with a Mk3 rear hub/disk and a Yam r6 caliper). Does anyone know how the Ducati swing arm install in there (bearing, sleeve?)
thank you
Philippe

I suspect the 750GT swing arm is the same as a 900SS swingarm. I have a 900SS and it uses bronze bushings.

So will this the occasion to convert to grease and get rid or the 140 oil?
Philippe