[makemeknowit]

Which flywheel do I use in this swap, the one already in the '84(302 2bbl, C6 auto) or the one on the back of the 5.0 EFI/AOD out of the '93 donor truck? I'm going to retain the C6, not going to use the AOD (it's a 2WD tranny) only using the 5.0EFI and related electronics.

Thanks
Mike

 

[Zach94]

As long as the engine in the 84 is originally a later than 1981 motor, the inbalance in the flexplate will work. The C4 uses a 157 tooth flywheel, the AOD uses a 164 tooth. I am not sure about a C6, think it uses a 164, being larger than a C4. When you seperate engine/trans, just compare, between a 157 and 164 there is about an inch diff.

 

[Dallasbronco]

Use the C6 flexplate with the C6 tranny. The AOD and C6 flexplates each have a different thickness and will affect how the torque convertor engages the pump.
Rick

 

[Zach94]

That is a good point, and that would be best as long as the imbalance is correct:thumbup

 

[Stokes]

C-6 and E4OD use the same flex plate and the AOD and C-4 use the same flexplate (i think, if i remember right.) dont use the AOD flexplate on the c-6, it wont stick out far enough for the pump to engage, i think you will be safe with the other plate, unless ford changed the 5.0 balance between years.

 

[Zach94]

They did change the balance before ~1981 they had a 28oz, after they used a 50oz imbalance. I was just saying to make sure the engine in the 1984 was an actuall post 81 block, someone could have swapped an earlier engine on a 19 year old truck