Balancer slides in on install

Working on a 70s 360, and upon putting it back together, the damper slid right over the snout of the crank by hand. I found this strange, as I did have to use a puller to remove it on tear down, albeit it came off super easy. Its a factory balancer, and it appears to be in good shape in terms of inner and outer pieces. Lubed it up good, slid it on, and torqued the balancer bolt to the 100ft/lb torque spec in my 1971 service manual.

The balancer has no play once tightened, and it is definitely on all the way. Just wondering if I should be concerned at all about this...should I up the torque on the bolt to be safe? This engine ran for a couple of months in my possession and had no vibrations or issues during that time, the rebuild was more of a freshen up and to install hotter cam, heads and intake while going over everything else.
Do not play around with thread lockers or overtigtening it. Check if the keyway is not cracked. This happens often whne the female part is pressed on. A crack will allow the hole to expand and make the fit loose. If that is the case the whole assembly could fly apart. Try a good aftermarket balancer. appliedspeed.com