Thanks for replies. I linked to the 73mm by accident, corrected now. And I'll certainly check out the parktools site.
Also, I also should have said "I have access to $6k+". Bike is at my brothers with his tools, I'll ask about the vernier calipers, good suggestion.

The crank is wobbling horribly, I'm assuming it needs new bearings at the least. I started researching youtube videos and everyone recomended upgrading. This bike was a daily commuter for over a year, rain, wind and snow. An occasional shot of WD40(prob not the best thing) is all it got, so its got to be a mess in there.

The local bike shop wants $20 for a crank puller, so I'm trying to hold off until I can buy everything at once online. I was just hoping there was standard size BB/spindle taper that schwinn used, but I guess not.