How do I reinstall my timing damper without a threaded crank?

I'll take a look again but it doesn't appear there was threads on the damper. The 65 Plymouth Chassis Manual shows a damper installation tool that doesn't thread into the crank but pulls the damper on by a forcing screw. That's the same kind of tool at Autozone which if mine is actually threaded it should work but if it's threaded I will just get a crank bolt. How many ft-lbs to tighten it? My 73 Charger 400 crank bolt was 135lbs-ft. A Slant Six would be less or the same?