I used 936 because it seemed like the absolute best compromise for machinabiity and bearing strength.
Enco sells 932 hollow bearing stock. I believe it's the same, with a little less lead in the alloy. I paid extra for the supposed machinability of the 936 but, it cut easily, with a gorgeous finish. I wouldn't hesitate to try the 932. Enco was also cheaper than McMaster.
What you don't want is a sintered bronze, AKA oilite. Sintered bronze is porous. It's a good choice for applications where they don't have much lubrication (shifter mount). That porosity makes the bearing weaker and more prone to wear.
I have to add: the transmission I did has less than a thousand miles on it since the rebush. I may not know what I'm talking about and it may be headed for disaster. It's also a lot work and expense to get everything true, centered and bored to precise size. If I had to charge for the hours it took, it would be much, much cheaper to let Jamie and Marty do it.
