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Old Nov 2, 2014 | 10:14 PM
  #1  
Bluethunder3320's Avatar
Bluethunder3320
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flywheel?

i have a 78 f150 400 i am swapping a np435 in place of the old c6. i got a trans that used to be behind a 351m.

i bought a flywheel from someone who said it came from a 400 but he says the 351m is the same and uses a 12" clutch as well which is not what ive found. i have a feeling he didnt know what he had/what hes talking about.

D7TE 6380 DC is what it says on the back. there are 4 large threaded holes and 8 smaller ones farther out and i cant tell if they are threaded. the measurement is about 12 1/2" between the 4 larger holes.

if it is a 351m flywheel i will buy an 11" clutch, if it is a 400 then i will buy a 12" clutch, thanks any help is appreciated!
 
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Old Nov 3, 2014 | 07:46 AM
  #2  
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Originally Posted by Bluethunder3320
i have a 78 f150 400 i am swapping a np435 in place of the old c6. i got a trans that used to be behind a 351m.

i bought a flywheel from someone who said it came from a 400 but he says the 351m is the same and uses a 12" clutch as well which is not what ive found. i have a feeling he didnt know what he had/what hes talking about.

D7TE 6380 DC is what it says on the back. there are 4 large threaded holes and 8 smaller ones farther out and i cant tell if they are threaded. the measurement is about 12 1/2" between the 4 larger holes.

if it is a 351m flywheel i will buy an 11" clutch, if it is a 400 then i will buy a 12" clutch, thanks any help is appreciated!
The flywheel should be 180 tooth and flat and clutch 12" for the 400 ..
 
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Old Nov 3, 2014 | 02:22 PM
  #3  
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Originally Posted by Bluethunder3320
i have a 78 f150 400 i am swapping a np435 in place of the old c6. i got a trans that used to be behind a 351m.

i bought a flywheel from someone who said it came from a 400 but he says the 351m is the same and uses a 12" clutch as well which is not what ive found.

i have a feeling he didnt know what he had/what hes talking about.

D7TE 6380 DC is what it says on the back. there are 4 large threaded holes and 8 smaller ones farther out and i cant tell if they are threaded. the measurement is about 12 1/2" between the 4 larger holes.

if it is a 351m flywheel i will buy an 11" clutch, if it is a 400 then i will buy a 12" clutch, thanks any help is appreciated!
ID number: D7TE-6380-CE = Ford part number: D7TZ-6375-D .. 400 Flywheel-Use with 12" clutch / (6) 5/16" -18 pressure plate attaching holes on a 12 7/8" bolt circle.

ID number: D7TE-6380-DE = Ford part number: D7TZ-6375-E .. 351M Flywheel-Use with 11" clutch / (6) 5/16" -18 pressure plate attaching hoiles an a 12 3/8" bolt circle.
 
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