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Author
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Topic: How Difficult is Rebuilding a C-4
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fastcomet289
Gearhead Posts: 140
From: ventura ca
Registered: Feb 2002
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posted 06-19-2002 05:39 PM
   
Im pretty handy with a wrench, but have never cracked a tansmision case to rebuild or install a shift kit. I want to make my car from column shift to floor shift. Also it needs to be rebuilt. Is this something left to a pro and what do i need to convert to a floor shift besides the shifter and steering column. What linkage do i need to convert it.------------------
1970 mach1 351c
1965 comet 289
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SteveLaRiviere
Administrator Posts: 33988
From: Saco, Maine
Registered: May 99
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posted 06-19-2002 07:49 PM
If you are VERY exacting and follow the manual closely you are all set. The C4 is one of the easiest trannys to rebuild.To convert to floor shift, you'll need the shift lever shaft from a floor shift tranny, unless you're using an aftermarket shifter.
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'70 Mustang Mach 1, '72 Mustang Sprint, '94 F-150
MCA Member # 47773
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Fastback68
Gearhead Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 06-19-2002 08:23 PM
If you've never rebuilt a tranny, even a C4, I think the chances of screwing up doing it on your own are very high - with the manual. Without a manual, you might as well throw the thing in the river to start with 
I've now watched the pros rebuild five C4's and I'm gonna do my own next time, with someone watching over my shoulder.
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fastcomet289
Gearhead Posts: 140
From: ventura ca
Registered: Feb 2002
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posted 06-19-2002 08:36 PM
what are the problem areas that i should pay special attemtion to?------------------
1970 mach1 351c
1965 comet 289
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Fastback68
Gearhead Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 06-19-2002 08:55 PM
Others will hopefully guide you on specific technical issues, but for people like me, it's an issue of what goes where, how much to torque this, how to clean that, etc., etc. There are just so many shiny bits lying on the ground, and I fear they will end up that way - lying on the ground.
If you're the kind of guy who can strip something complex down and then reassemble it, it should be a breeze.
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bluetech
Gearhead Posts: 254
From: Far and Away
Registered: Feb 2001
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posted 06-20-2002 03:25 AM
quote:
Originally posted by Fastback68:
I'm gonna do my own next time, with someone watching over my shoulder.
Can I watch?
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Moneymaker
Administrator Posts: 19751
From: Lyons, IL, USA
Registered: May 99
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posted 06-20-2002 05:49 PM
As STeve says, they are pretty simple if you follow a manual and use quality parts. 
You will need a C-4 floor shift manual control lever for your conversion. It is the one that points UP. ^
I believe that NPD offers them as a repop. Check with Rick.
They are getting pretty scarce at the trans shops and junk yards won't split up a trans for them. ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl [This message has been edited by Moneymaker (edited 06-20-2002).]
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n2oMike
Gearhead Posts: 1590
From: Spencer, WV
Registered: Jan 2001
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posted 06-20-2002 06:09 PM
If you want to get REALLY technical about how to make one tick... Go here and read all about it.http://www.fordmuscle.com/phpBB/viewforum.php?forum=13&113 Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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brockjoe
Gearhead Posts: 961
From: Sioux City, Iowa
Registered: Oct 99
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posted 06-20-2002 06:26 PM
as long as were talking c-4's today mine lost all forward gears but rev works well (imagine the looks i got driving home backward) is there a easy fix or should i chuck it------------------
Joe
71 Coupe
302 w/2x4
73 Coupe parts car.
Boycott NASCAR
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Moneymaker
Administrator Posts: 19751
From: Lyons, IL, USA
Registered: May 99
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posted 06-20-2002 06:43 PM
Probably not Joe.  I would at least drop the pan and have a look. You might have goten lucky and just clogged up the filter. Reverse has quite a mechanical advantage over the forward gears, so it sometimes will still work with less fluid. Good luck.------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl
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RonnieT
Gearhead Posts: 637
From: Port Allen, La. 70767
Registered: Jun 99
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posted 06-20-2002 10:30 PM
One issue with rebuilding a transmission is having the proper tools remove the special retaining rings and to compress the spring washers in the clutch drums to change the seals rings, if you do not change these seals you might as well not do anything. A work bench with a hole in it works well to allow you to stand the transmission on end. ------------------
Ronnie
69 mach1 351W-4V
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23
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SteveLaRiviere
Administrator Posts: 33988
From: Saco, Maine
Registered: May 99
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posted 06-21-2002 05:33 PM
All you really need special are snap-ring pliers. You can remove the clutch retaining rings with a screwdriver. You should have an inch/lb torque wrench for the valve body, too.------------------
'70 Mustang Mach 1, '72 Mustang Sprint, '94 F-150
MCA Member # 47773
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