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Old 07-25-2006, 08:02 PM
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700R4 in a 1940 Ford Coupe

Has anyone dealt with this modification? Right now I have the chassis/frame with the body off. I have installed a set of Speedway Motors motor mount/receivers. Fit great and motor tranny combo is setting in place. Right now the tailshaft is resting on the x member. I am looking for a ready made tranny mount for this application or any suggestions/tips on fabricating something to make it work. Pics or description will be greatly appreciated.

BTW it is a 350/700 R4. Once in place I will need to have a driveshaft built to hook up the tranny to the 9" rear.

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Old 07-26-2006, 09:21 PM
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Do you still have the wishbone intact or have you replaced the front end?

Several vendors (Pete & Jakes for instance) have several options for mounting your Transmission. Almost all have something to do with splitting the bones or... replacing a section of the "X" member with a plate.

I kept a stock type front end under mine. Used a Bell 4" dropped axle and split the bones with a Pete and Jakes kit. This worked out fine for me.

If you have gone the Mustang II route then all you really need to do is blow the rivets out of the X member and replace the X member with a plate that ties the frame together and mounts your tranny.
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Old 07-26-2006, 09:35 PM
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Check with Total Cost Involved. www.totalcostinvolved.com
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Old 07-27-2006, 06:07 AM
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Thank you guys. Both very helpful and the sites you recommended should be of immense help. I'll shoot some digital pix today and post, so I can pick your brains with a point of reference if you don't mind.
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Old 07-27-2006, 07:07 AM
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I have a 700r4 in my 40 ford. My frames X member was opened up so there was little problem.

There is a kit advertised in magazines that opens the X member enough to put a 700r4 in. I don't remember who made it.

I think some of the trans tunnel had to be bumped out. Everyones floor I would guess is different.
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Old 07-27-2006, 07:27 AM
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Quote:
Originally Posted by evltwin
I have a 700r4 in my 40 ford. My frames X member was opened up so there was little problem.

There is a kit advertised in magazines that opens the X member enough to put a 700r4 in. I don't remember who made it.

I think some of the trans tunnel had to be bumped out. Everyones floor I would guess is different.
Well, now I know it can be done. Thanks. I assumed it could, but got a litle nervous when fitting the engine/tranny for mounts and spacing. Everything
looked about 6 inches too long. Looking at it last night, I came to the conclusion that the x member had to be opened up, but my concern shifted to how to get the structural integrity back into the frame afterwards. I will also have to address moving the engine/tranny back for radiator clearance. I guess if I am cutting into the x member, I should use as much space as I can.

The floor is all open at this point and a tunnell is non existent.
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Old 07-27-2006, 12:08 PM
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After closer inspection last night, I took some pix of the application. The x member is essentially gone and he area is opened up via a redesign It is now boxed instead of an "x".
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Old 07-27-2006, 12:20 PM
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Looks like all you need is a tranny mount on that little perch that the tailshaft of your trans is sitting on.
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Old 07-27-2006, 12:21 PM
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Not sure if this will help, but if you look at my Frame ('35-40 are the same), it has been engineered for a 700R4. It looks to me that maybe you will have to open up the Frame at the rear of the Transmission. Not suer if this link will work, but you can see it in my Journal-

http://hotrodders.com/journal_photos...1127273820.jpg
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Old 07-27-2006, 12:31 PM
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Quote:
Originally Posted by Henry Highrise
Looks like all you need is a tranny mount on that little perch that the tailshaft of your trans is sitting on.
That sits way too high. Pinion angle and body clearance would be nasty.
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Old 07-27-2006, 12:34 PM
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Quote:
Originally Posted by 35WINDOW
Not sure if this will help, but if you look at my Frame ('35-40 are the same), it has been engineered for a 700R4. It looks to me that maybe you will have to open up the Frame at the rear of the Transmission. Not suer if this link will work, but you can see it in my Journal-

http://hotrodders.com/journal_photos...1127273820.jpg
Thanks for the pix of the 35. I suspect I will either be opening it up and creating a mounting loop or welding a flat plate from below. I will need to mock it up and check the drive shaft angle and road clearance from the bottom mount. On the 700r4 , the tailshaft mount is on the underside of the case( like most others ).
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Old 07-27-2006, 12:36 PM
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Nice frame 35window.
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Old 07-27-2006, 12:39 PM
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Very, very nice frame, suspension, etc.
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Old 07-27-2006, 12:43 PM
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Thank you both! Walt,I like the looks of your '40 (always wanted one)! Very nice!
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Old 07-27-2006, 01:00 PM
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Quote:
Originally Posted by 35WINDOW
Thank you both! Walt,I like the looks of your '40 (always wanted one)! Very nice!
When I get this crossmember conquered I plan to clean up the rest of the frame, and get somewhere near the cosmetic look of yours.
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