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Old Apr 7, 2017 | 10:03 PM
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Transmission ID Help

There is a guy that has this transmission for sale. I was looking to get a backup for my truck, but I am not sure what it is. He says it is a C6, but the top two bolt holes measure 8.5" from center to center. The C6 in my truck appears to measure about 7.5". Also, the bell housing is shaped different. Any help would be appreciated.
 
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Old Apr 7, 2017 | 10:16 PM
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It is a C6, no doubt about that. It's either for a 460/429/400/351M, or it could possibly be for a 6.9/7.3 diesel. I'll have to measure my 7.3 pattern to compare.
 
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Old Apr 7, 2017 | 10:30 PM
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Yea, it looks like it would bolt to a pretty big motor.
 
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Old Apr 7, 2017 | 10:56 PM
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385/335 pattern is said to be 7 3/4" at the top bolt holes.

http://www.crankshaftcoalition.com/w...transID04b.jpg

Diesel transmissions bolt up to this:

https://www.ford-trucks.com/user_gal...d=181615&.jpg=

See post 14 and 15. There is a picture of a diesel/385 adaptation. The top two holes are the same it says.

https://www.ford-trucks.com/forums/1...-idi-swap.html

8.5" on the top two holes.....
 
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Old Apr 7, 2017 | 10:58 PM
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Wait--look at the second image with the tape measure. Look real close at how that tape sits. I think that trans is really closer to 7 3/4" wide at the top holes.
 
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Old Apr 7, 2017 | 11:21 PM
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I think it's from a 460
 
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Old Apr 8, 2017 | 12:14 PM
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There's one that looks just like it on Ebay for sale. It says its out of a 1987 F350 6.9 diesel.

Ford C6 2x4 auto transmission for 7.3, 6.9 diesel WILL SHIP | eBay
 
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Old Apr 8, 2017 | 01:12 PM
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My 7.3 pattern is 7-3/4" across the top holes.
 
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Old Apr 8, 2017 | 02:58 PM
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Uh, what is the casting numbers on the case to ID it?
 
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Old Apr 8, 2017 | 04:41 PM
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I am supposed to go pick it up sometime this weekend and I will get the numbers. I don't know what it is, but I figure I can't live without it.
 
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Old Apr 8, 2017 | 08:13 PM
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Originally Posted by 68FordTruck
I am supposed to go pick it up sometime this weekend and I will get the numbers. I don't know what it is, but I figure I can't live without it.
That means you've caught the disease.... your screwed now! Haha
 
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Old Apr 9, 2017 | 10:43 AM
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Originally Posted by 351Cleveland C4
That means you've caught the disease.... your screwed now! Haha
Yup. Don't worry though it's not fatal, just terminal. You'll only have it until you die.
 
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Old Apr 9, 2017 | 11:17 AM
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Old Apr 10, 2017 | 02:36 PM
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Of course a tag number off it would be utopia at figuring out what it's out of. After that the 2 digit stamping code off the manual control body, color of stripe off the vacuum modulator, and the 2 or 3 digit code off the torque converter will help me I.D. it.
 
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Old Apr 10, 2017 | 06:10 PM
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It looks like it is the 335 series. The top bolts measure 7 3/4 from center to center and it has the same bellhousing as listed in Ultraranger's middle pic below. Thanks Ultraranger. There is no tag, of course. The number on the drivers side of the transmission reads D7AP7006-AA. I took the pan off and the oil was clean and had no metal.
 
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