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Author
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Topic: Driveshaft length?
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68 S-code GT
Gearhead Posts: 3835
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 10-09-2002 07:10 AM
 
For a 68 coupe (65-70 should be the same) with a C4 or top loader and a 9�� rear. Mine is to short and I could have one made up but if I can find one at Hershey this weekend that would be cool.  I think 50�� is correct but when looking at the shaft where do I take and compare the measurements? Is it at the center of the eyes or is it total length?  ------------------
68 S-code FB GT 4spd(now C6)/3.25 PS PDB
68 J-code(now 289) Cp Sprint"B" C4/3L00-9" PDB PS AC
99 F150 XLT Ext/cab, 4X4, 5.4L, 3L55
95 Exploder XLT with the works! (Wife?s car)
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ccode67
Gearhead Posts: 3285
From: douglasville,ga,usa
Registered: Mar 2001
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posted 10-09-2002 08:45 AM
My 67 with the C4 and 8 inch was 51 inch from center of u joint to center of u joint.With the 9 inch it uses a 50 inch. Unless you use a short yoke on the rear end, then you can use the 51. It now has a T-5 and 9 inch (long yoke) and a 50 inch shaft. Hope this helped. ------------------
Stuart MCA #48902
M&M #1091
67 stang 5 speed, 351W,
Edelbrock Performer RPM package Artificial Intelligence is no replacement for Natural Stupidity. http://mustangsandmore.50megs.com/ccode67.html
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cynot65
Gearhead Posts: 1258
From: New York
Registered: Apr 2000
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posted 10-09-2002 03:13 PM
That's a loaded question right 
Tony C*------------------
65 Convertible, Vintage Burgandy/Standard Black Interior, 289, 4spd
M&M Member#450
It ain't done yet, but it'll be done right!!
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Fastback68
Gearhead Posts: 4511
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 10-09-2002 07:10 PM
As a general rule, is it really OK just to swap yokes around? I've just made the 9-inch swap and the yoke on the 9-incher is about an inch longer than on the 8. But I figured that was for safety / strength.
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Moneymaker
Administrator Posts: 29200
From: Lyons, IL, USA
Registered: May 99
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posted 10-09-2002 07:13 PM
Measure all drive shafts from center of u-joint to center of u-joint.
Simon, you can swap yokes as long as the spines are the same and the seal area diameter is correct. ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA/MCA member
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Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
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The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
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68 S-code GT
Gearhead Posts: 3835
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 10-09-2002 09:53 PM
So It looks like the 50" shaft from center to center
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68 S-code GT
Gearhead Posts: 3835
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 10-09-2002 10:01 PM
quote:
Originally posted by ccode67:
With the 9 inch it uses a 50 inch. Unless you use a short yoke on the rear end, then you can use the 51.It now has a T-5 and 9 inch (long yoke) and a 50 inch shaft.
The rear is a late 69 28 spline (I was told the tag is stamped like a 70) that looks to be untouched and installed a long while ago. Would it come with a short yoke? It kind of looks like the one in my FB. Not to change the subject but do you know the power output of your engine? How is the T-5 holding up?
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ccode67
Gearhead Posts: 3285
From: douglasville,ga,usa
Registered: Mar 2001
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posted 10-10-2002 07:26 AM
quote:
Originally posted by 68 S-code GT:
The rear is a late 69 28 spline (I was told the tag is stamped like a 70) that looks to be untouched and installed a long while ago. Would it come with a short yoke? It kind of looks like the one in my FB. Not to change the subject but do you know the power output of your engine? How is the T-5 holding up?
Not sure of the power output, it went 13.60 @ 105 leaving the line at idle to prevent wheel spin, T-5 is holding up very well so far, it's been driven about 6500 miles in the last year (2300 of that in one week ) I don't have any exact measurments on the yokes, I'll try to get them for you.
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