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1973 - 1979 F-100 & Larger F-Series Trucks
77 - 79 C4 ?

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77 - 79 C4 ?

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Old

Oct 29, 2011 | 10:14 AM

#1

old rat

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Joined: Aug 2011

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77 - 79 C4 ?

Need to replace 77 C4. Found good deal on a 79. Direct Replacement ?

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Old

Oct 29, 2011 | 10:23 AM

#2

kingford72

Senior User

Joined: Jul 2005

Posts: 494

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From: Mountville PA

there are two different c4's, 1 - has a big bell housing, 168 tooth flywheel, and a dipstick in the side of the pan. 2 - has a small bell housing, 157 tooth flywheel, and a dipstick that goes into the case. By big and small, I mean the bolt pattern that bolts to the trans side of the bell housing the engine side is still the same. there are differences in the older trans (68-69). Both can be used if you have all the parts listed above. just a note I've only seen the large style in the trucks, so maybe the small type was a car thing.

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Old

Oct 29, 2011 | 02:38 PM

#3

gfw1985

Cranky Old Guy

Joined: Mar 2008

Posts: 3,562

Likes: 6

From: Raphine, Virginia

I'd rebuild what you have, then you know it's good. If you can remove and replace it yourself it saves a bundle.

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