Classic Mustangs List Archive

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Mail From: Peterson, Keith (email redacted)

Does anyone have details on the differences of the 351 Cleveland/FMX
flexplate and a late model (95 and up) AOD flexplate?

Diameter
Tooth count
Bolt pattern measurements - for the converter
Counter weight - weight

TIA
KPeterson

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This read-only message was archived from a public mail list.
Mail From: David Cole (email redacted)

At 01:21 PM 12/1/99 -0400, Peterson, Keith wrote:
>Does anyone have details on the differences of the 351 Cleveland/FMX
>flexplate and a late model (95 and up) AOD flexplate?
>
>Diameter
>Tooth count
>Bolt pattern measurements - for the converter
>Counter weight - weight
>
>TIA
>KPeterson


They should be the same with one possible exception.
Both are 164 tooth.
Both are 28oz/in imbalance, assuming that the AOD flexplate came from a
351-W. If it is from a 302, the balance is 50oz/in.
The converter bolt pattern is 4 on 11 7/16" circle for the fmx, and will be
on a 351 AOD flexplate, can't say if it is on a 302, but I think it is the
same.

The exception: The offset may be different. I used an fmx flexplate with
my small block C-6. I had to put shims between the converter (.200) and
flexplate in order for the converter to seat properly in the trans pump.
The same might apply here. Don't know.

Later,

David Cole


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