I am putting a 5.0 in place of 302 with C4 (76 Bronco).
Will need flexplate with 164 teeth, 50 oz balance, and 10 1/2" bolt diameter.
Does any one know if any of original flexplates were made like this so I can pick one up at wrecking yard or will I have to have old one rebalanced from 28 to 50 oz?
Thanks. Parts houses and wrecking yards have been no help.

 

The 80's 5.0's backed by the AOD transmission is what you want. Common as the dirt in the wrecking yard.

 

I thought all AOD Trans used large 11 1/2 bolt diam torque converters.

 

All the AOD's I've seen use a 164 tooth flexplate. If a 164 tooth doesn't fit the converter, then you need a 157 tooth-50/oz flexplate. Summit sells the B&M unit for about $50-100.

 

Appreciate your help.
I am original owner of this '76 Bronco. It came from the factory with 164 tooth, 28 0z flexplate (large bell housing) with a 10 1/2" bolt diameter converter. I think I will have to have mine rebalanced to 50 oz or buy an 11 1/2" diameter converter.