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  '64 1/2 to '73 -- The Classic Mustang
  Switching C-4 Trannys

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Author Topic:   Switching C-4 Trannys
Boss Hoss
Gearhead

Posts: 222
From: Georgia
Registered: Mar 2001

posted 11-01-2001 10:25 PM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
OK, I am going to be removing the 1970's C-4 transmission from my 1965 coupe, and replacing it with a more correct 1966 C-4 that I found. I will also be replacing the torque converter, and possibly the flywheel, if it is in bad shape (I don't think it is). In order for the 1966 tranny to work with my Mustang, I will have to remove its manual shift lever, because the 1966 tranny's shift lever is for a column-shift car. I will put the manual shift lever that is currently working with my 1970's C-4 into the 1966 C-4 so my car will be able to shift it. I will also put the bellhousing from the 1970's C-4 onto the 1966 C-4 because it doesn't have one.

MY QUESTION: I am fairly good with tools, and so far I have had good luck working on my Mustang (knock wood). However, I have never messed with transmissions before, and I am wondering if I should tackle this job.

I know that I will have to remove the valve body on both transmissions in order to swap the shift levers, and I know that you MUST torque the valve body screws to the correct inch-pound setting.

Is there anything else I need to watch out for, or is this a pretty easy and straightforward swap? What do I need to know to switch my current transmission's yoke onto the 1966 tranny? Do I need to replace the rear seal when I do this, or is it a slide-off, slide-on deal?

For lifting purposes, I will be renting a transmission jack, unless I can find a transmission adaptor for my floor jack that's not too expensive. I AM TRYING TO SAVE MONEY, in case you haven't noticed already!

Any and all tips would be appreciated. Thanks!

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*andy* ([email protected])

also known as...***Boss Hoss***

*1965 Mustang 289 coupe*
*1996 Mustang GT coupe*

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Boss Hoss
Gearhead

Posts: 222
From: Georgia
Registered: Mar 2001

posted 11-02-2001 08:09 AM     Click Here to See the Profile for Boss Hoss   Click Here to Email Boss Hoss     Edit/Delete Message   Reply w/Quote
Oh, and I know about keeping the front pump from coming out of the front of the transmission case.

So...what am I in for?

Anyone?...Anyone?...Bueller?

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*andy* ([email protected])

also known as...***Boss Hoss***

*1965 Mustang 289 coupe*
*1996 Mustang GT coupe*

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franklin
Gearhead

Posts: 128
From: VA
Registered: Nov 2000

posted 11-02-2001 01:25 PM     Click Here to See the Profile for franklin     Edit/Delete Message   Reply w/Quote
I would take the lever out of the transmission you are not going to use first. That will be a trial run for the trans that you care about that's going in the car. Transmission work is no fun. I always have trouble getting the car high enough off the ground to do trans work. With what I have to work with, I can barely get the bellhousing under the car. Then I have to heft it up on the floor jack under the car. What I've done that works pretty good is point the handle of the jack towards the front of the car. Then while balancing the trans on the jack and holding it with my hands, I use my feet or a helper to jack the trans in place. The jack naturally raises and moves to the front at the same time.

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SteveLaRiviere
Administrator

Posts: 30756
From: Saco, Maine
Registered: May 99

posted 11-02-2001 05:47 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
When you remove the valve body, do not tip it. There is a check ball that will fall out if you do.

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'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
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