I have a 400m motor and im missing the flywheel. Can I use a 351m flywheel and if so do I need to change anything else? This is for a 4 speed tranny . I have a 77 1/2 ton 4x4. Thank you in advance

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The 400 uses a 12" clutch while the 351m uses a 11" I think. Thinking you can interchange them though, the flywheels that is.

 

Are the flywheels the same?

 

yes the flywheels are the same with the exception of the pressure plate bolt holes...unless you have a dual pattern flywheel that excepts bothh clutch sizes you'll need a new clutch...

 

Anything else I should know?

 

nope everything else interchabges without issue so if you've swappped on a new intake or cab or headers or something it'll fit on your new motor without issues...

 

Great, but im having a heck of a time finding the flywheel. Anyone have one for a 4 speed?

 

For a 400m would be better! Lol!

 

1977 351m 400 flywheel dt7e 78 79 4x4 f150 f250 bronco - eBay (item 370496579005 end time Apr-02-11 18:57:31 PDT)

Little expensive to me though. Maybe try to find a you pull it type place around you.

 

WeYep, I checked that a month or so ago. With the shipping and it still needing resurfaced it is too high. I had one here for 50 but the guys number is now disconected. I can get one ready to go for 150 but I would like to see if I can get one cheaper before I get it. I can get a whole motor for 175 over here too but I dont a.whole motor that he doesnt know if it is worth anything or not.