Any one use the 440 source flywheels

PS how can you be at 150 shipped to your door

It's hard to beat.

Concerning the balance part of it. I can tell you, the factory balance job is so sorry you can barely say it was balanced. I was told Chrysler used "mass balancing" and I never spent any time doing the research on it. Point is, the balance is so far off that if you have one that shakes, I would say the crank was never even up on a balancer.

I did all my balance jobs to 4 grams on the street and tried to get down to a gram on the race crap but you are really picking the pepper out of the fly poop. To get both ends of the crank to a gram, especially with a clutch is just about unreal. Most people don't balance the disc. You should. They can be off a bunch. Every time you push the clutch in, the disc and the crank change position, thus changing the balance.

Again, hundreds of thousands of clutches and flywheels get changed without a balance job and an amazingly high percentage of them never have an issue.

You should be ok with the 440 source stuff and the bolt on weight.