Last bit of help needed, I'm changing out my original crankset on my old '93 Giant Sedona with the shimano FC-M361. On Shimano's website, they say to use the UN26 bottom bracket.

http://techdocs.shimano.com/media/te...9830667768.PDF

But so many reviews of that bb say that the plastic part is flimsy and will break and the UN55 is all metal and more durable. Can I use the UN55? Don't know why Shimano would't list it since it costs more and you'd think they'd want folks to buy the more expensive one.

Thanks