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I'm currently swapping a high output 302 into my truck and ran into a problem with the ring gear. What I found was when I pulled the AOD off of the 302 the torque converter said balanced on it and there wasen't any weights on the ring gear. So what I need to know is can I use a ring gear off an older non high output 302 or can I use one off a 351w.

Oh yeah the reason for the swap is I have to get rid of the 300 six thats in it and I love the high output.
 

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All of the High Output stuff uses the 50 ounce imbalance crank, flywheel, and balancer. You need a flywheel/flexplate off of an '81 ('82 just to be safe) or later 5.0, it will be a 50 ounce, and will work.
All 351Ws are 28 ounce imbalance, along with all '80(?) and earlier 302s and 289s.
Don't trust any of the 255 stuff, it changed around differently, balancewise.
You'll know, at about 3000 or so RPMs, if it's wrong. btdt...
 
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