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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Transmission compatibility?

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Old Apr 24, 2010 | 10:40 PM
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Transmission compatibility?

i am going to put a 351w in a 66 f100 and i was wondering what are my choices for tranny's? the truck has a 300 ci straight six in it and a four speed manual and i wouldn't mind keeping that tranny if possible. any advice would be amazing.
thank you,
Seth
 
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Old Apr 25, 2010 | 04:28 AM
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Seth, You will need a st. dr. setup bell for your W that should bolt to your tranny. You might try installing it on the same engine perches, but have a set from a 302 ready to use if needed.


guluk



John
 
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Old Apr 25, 2010 | 04:27 PM
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okay cool thanks. just so im clear i would need a different bellhousing and thats it? or what? thank you again.
 
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Old Apr 25, 2010 | 04:45 PM
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300 has same bell as 351w.all you should need is a flywheel.the 300 flywheel fits but has different balance.
 
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Old Apr 25, 2010 | 05:20 PM
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Originally Posted by 312
300 has same bell as 351w.all you should need is a flywheel.the 300 flywheel fits but has different balance.
You're saying the the 300 bell will bolt up on the W??




John
 
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Old Apr 25, 2010 | 08:25 PM
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so i found out the the 4 speed isnt actually stock. the truck came with 3 on the tree. but now it has a 4 speed manual, so does only needing a flywheel still apply?
 
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Old Apr 25, 2010 | 09:45 PM
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Originally Posted by jowilker
You're saying the the 300 bell will bolt up on the W??




John


300, 302, 351w and the "real" 351c all use the same bell housing bolt pat.
 
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Old Apr 25, 2010 | 10:57 PM
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Yeppers.that is correct.

You will also need to get a flywheel for 351 w a stick.
 
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Old Apr 26, 2010 | 12:46 AM
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Oh okay sweet im glad i asked cause i was going to get a transmission from pick and pull and re build it so i could use the motor but just needing a flywheel will save me like 300 buck which is always nice. does anybody know any good sites to get a decent inexpensive flywheel?
 
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Old Apr 26, 2010 | 10:25 AM
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What year is the 351W engine?

You can't install any 'ol 351W flywheel, because the balance may be different.

1969/79 uses the same flywheel (D7TZ6375C [replaced C6TZ6375C]). 1980 and later is different (E8TZ6375C [replaced EOTZ6375B).

Make sure when you install these parts, you record what year/vehicle they came from.
 
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Old Apr 26, 2010 | 01:13 PM
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the 351w is going to be a 70's vintage motor probably early 70's like a 75-ish. thank you for the added info i was just going to find a flexplate for any 351w. good ting i didnt. haha. where should i buy one from?
 
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Old Apr 26, 2010 | 03:04 PM
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Originally Posted by Sethpruitt01
the 351w is going to be a 70's vintage motor probably early 70's like a 75-ish. thank you for the added info i was just going to find a flexplate for any 351w. good ting i didnt. haha. where should i buy one from?
1970's vintage: From a Passenger Car or 1975/79 Econoline. No 351W's in F Series trucks or Bronco's until 1981.

D7TZ6375C (replaced C6TZ6375C) .. Flywheel / Obsolete

No Ford Dealer or obsolete parts vendor has any.
 
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Old Apr 26, 2010 | 07:12 PM
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oh okay well would an 84 f250 have one? and if so thats the truck i will be getting the motor from. and is there still flywheels available for that one? thank you for the advice so far its really helpful and very much appreciated.
 
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Old Apr 26, 2010 | 08:47 PM
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Originally Posted by NumberDummy
351W =

1969/79 used the same flywheel.

1980/93 is different (E8TZ6375C [replaced EOTZ6375B).
E8TZ6375C is obsolete, but I found 79 of them NOS (New Old Stock), 76 are at Ford Dealers (none in CA), one obsolete parts vendor in OH has 3.

But...the last MSRP was a whooping $393.40 (!). Dealer net cost was $236.04.

I dunno what the dealers will want for it. You may be able to buy it at dealer net, or maybe not.
 
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Old Apr 26, 2010 | 09:06 PM
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so basically i would have to get one of those? even with all of the people building performance 351w's these days there is no less expensive aftermarket ones or anything like that? its starting to seem ridiculous that flywheels are impossible to find.
 
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