Orienting Shimano Cup and Cone square-taper bottom bracket spindle I was servicing my Shimano adjustable bottom bracket and forgot which way the spindle was originally oriented. Without measuring in detail, how do I correctly orient the spindle (so that the correct side is on the drive side)?

One side of the spindle is a little longer than the other one. The longer side is the drive side. There may be spindles that have arms that are the same length, but I'm not aware of any.