You can tell that the 5-60 is slightly larger 20.36mm vs 18.64mm
(http://i717.photobucket.com/albums/ww177/Marc1956/20150601_121616_zpspjljcirw.jpg) (http://s717.photobucket.com/user/Marc1956/media/20150601_121616_zpspjljcirw.jpg.html)
I made this jig out of gear sleeve so I could mount the original 650ss washer with the 5-60
(http://i717.photobucket.com/albums/ww177/Marc1956/20150601_144115_zpsll3uaqgz.jpg) (http://s717.photobucket.com/user/Marc1956/media/20150601_144115_zpsll3uaqgz.jpg.html)
(http://i717.photobucket.com/albums/ww177/Marc1956/20150601_144324_zpsxkn5mzfs.jpg) (http://s717.photobucket.com/user/Marc1956/media/20150601_144324_zpsxkn5mzfs.jpg.html)
Was able to do two at a time, put a nut on and up on the drill press it went
Forgot to ask Bryan to send me an extra washer but didn't need to, I use one of the original to go on top and it fitted perfect
(http://i717.photobucket.com/albums/ww177/Marc1956/20150601_133230_zpsuoqpvhrm.jpg) (http://s717.photobucket.com/user/Marc1956/media/20150601_133230_zpsuoqpvhrm.jpg.html)
Haven't had the chance to test the drag yet(no line on spool) but would be surprise not to reach 20lb easy
Marc..
That is a solid Idea and nice work on that! Looking good! Keep us posted on the drag numbers you get from that