One thing to look out for on your bike; was the current spindle factory installed "backwards" (i.e. with the longer end toward the non-drive side) in the cups? I had a '93 Trek 7000 MTB that came with a Tange cup-and-cone bb and the spindle had to be installed in reverse of normal to let the nds crank arm clear the nds chainstay. When I replace the OEM bb with a UN-XX cartridge, I had to go to a 127.5 mm (the longest offered) to get both crank arms to clear.