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I believe the pre 80 engines use a 50 oz harmonic balancer. The newer 5.0 HO uses a 28 oz. You can actualy use(or so I have been told) the heavier I6 300 cid flywheel, if you can find a shop to ballance it propperly for you. I tried every shop in Vegas, I might as well have been speaking swaheelee, by the confusion I generated.

89 YJ
"I hope someone got a picture of that"
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