C6 or FMX

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Sep 7, 2005 | 12:55 AM

70_f100

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C6 or FMX

How can I tell whether I have a c6 or FMX? It is a 70 f100 with a 360 and all I know for sure is that the tranny is way shorter that the c6 that came in my thunderbird. Is there anything I can look for to tell the difference without finding numbers?

Sep 7, 2005 | 12:57 AM

ford390gashog

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From: Brentwood,CA

count the bolts. but i am 100% sure it is a c-6 because a fmx was not put behind a fe enigne.

Sep 7, 2005 | 03:11 AM

71F100/390

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the c-6 pan has an unmistakable L-bend in it(wider towards the front). I'm pretty sure the FMX came with a square pan.

Sep 7, 2005 | 03:33 AM

ford390gashog

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also the length means nothing as the tailshaft is removable and cars had a longer one than trucks

Sep 7, 2005 | 06:29 AM

jowilker

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From: Creedmoor, North Carolina

Quote:

Originally Posted by ford390gashog

count the bolts. but i am 100% sure it is a c-6 because a fmx was not put behind a fe enigne.

AAAH Not So Grasshopper. Many of this series trucks with automatics had the FMX and FMX family COM trannys.

As mentioned the pan is a good way to tell, as is the body. The C6 bell & body is one piece and the FMX/COM is alu bell and cast iron mid section.

John