383 harmonic balancer install

I've grown to not really like pulling balancers on with a bolt. Think about what you're doing. You are exerting two forces on the crankshaft threads. You are rotating the bolt into the crank while pulling on the threads very hard. It's just not a recipe for good things to happen. I know it's been done since the beginning of time......I've done it myself. But you always see metal chips from the threads. That ain't a good thing. The all thread rod and nut and thick washers is a great idea. Just make sure you buy two nuts, lock them together and tighten the all thread rod good in the crank before you push the balancer on. That way there will be no damage to the crank threads.