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Old Jan 21, 2013 | 09:52 PM
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dyoungen
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From: Perry Georgia
transmission questions

We're in the process of putting a 300 six with an FMX transmission into a 1976 F100 that had a 360 engine and a c6 transmission. We thought it had a c4 but found out otherwise over the weekend. What kind of fluid and how much does it hold? I understand it is a heavyduty transmission. Can anybody tell me how they hold up and any information on them. Thanx in advance!!!
 
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Old Jan 21, 2013 | 11:06 PM
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the C4 takes 28 hp to operate , the C6 uses up 55 hp , the FMX 25 hp and is way stronger than the plastic explosive C4 ! i use to out run the cops on my FMX !

The FMX is a step between the C4 and C6. They're fairly reliable transmissions, just not a lot of support aftermarket wise for them. Also, with a cast iron main case, they're heavier than a C4.

they hold 11 qts
 
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Old Jan 21, 2013 | 11:58 PM
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All great trannys..just power robbers. That's why you didn't see a whole lot of c6 behind the 300..due to the parasitic loss.
 
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