• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

Drivetrain Are 72+73 Drive Shafts And Yokes Interchangeable?

  • Thread starter Thread starter Platonic Solid
  • Start date Start date Jun 21, 2013

Platonic Solid

Founding Member
May 29, 2002
1,960
5
39
CT-USA
Jun 21, 2013
#1
  • Jun 21, 2013
  • #1
My 73 Mach (351C FMX 9” Rear) is at the mechanics as I just don’t have the time to repair its various issues.
The mechanic has asked me to pull the drive shaft and yoke from one of my other 71-72 Coupes (302 C4 8” Rear) for use on the 73.

Are these drive shafts and yokes interchangeable?

I see one (65/73) 25 spline yoke and two (65/72) 28 spline (1 ext snap ring/ 1 int snap ring) available on Mustangs Unlimited.
Mustangtek.com has good info, but unfortunately doesn’t include 73 on the list.
If I was to guess based on the Mustangtek chart and what Mustangs Unlimited has to offer, I’d guess that my 73 uses a 25 spline yoke and 72 302 C4 uses a 28 spline.

Would it be wiser to just buy a new yoke?

Thanks in advance.
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Jun 21, 2013
#2
  • Jun 21, 2013
  • #2
i believe you can interchange drive shafts between 71-73 mustangs. you might have to change the rear U joint depending on which rear end yoke you have.
 

horse sence

15 Year Member
Nov 29, 1999
12,259
8,108
233
Wile Coyote's stunt double
Jun 21, 2013
#3
  • Jun 21, 2013
  • #3
i not possitive on this but i think the FMX has a larger yoke than a c4
its been a while since i worked with an FMX but i think it will change with a c6
 

horse sence

15 Year Member
Nov 29, 1999
12,259
8,108
233
Wile Coyote's stunt double
Jun 21, 2013
#4
  • Jun 21, 2013
  • #4
i forgot i have a FMX here . it will not exchange with a c4 yoke. the FMX is larger
 

Platonic Solid

Founding Member
May 29, 2002
1,960
5
39
CT-USA
Jun 21, 2013
#5
  • Jun 21, 2013
  • #5
Hmph. Once again I end up looking for a part that no one seems to have. Unless I'm wrong, I need a 31 spline 8-7/32" long C3AZ-4841-A. Can anyone verify this part number?
 
You must log in or register to reply here.

Similar threads

3
Eight inches is enough for me...
  • 351MooseStang
  • Nov 27, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
5
Views
577
1974 - 1978 Mustang II Talk & Tech Mar 2, 2026
Bullitt347
J
2004 Mustang 3.8L V6 vibrations above 65 MPH and differential leaks
  • joeybuddy96
  • Mar 16, 2026
  • SN95 V6 Mustang Tech
Replies
16
Views
585
SN95 V6 Mustang Tech Jul 14, 2026
joeybuddy96
J
S
Vibration Damper For Mustang Ii Slip Yoke
  • spk1975
  • Sep 26, 2016
  • 1974 - 1978 Mustang II Talk & Tech
Replies
5
Views
3K
1974 - 1978 Mustang II Talk & Tech Oct 22, 2016
spk1975
S
T
Fox No Boost And Stumped
  • TWEECD
  • Aug 12, 2017
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2 3 4
Replies
63
Views
13K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 31, 2017
TWEECD
T
K
Short Yoke for 9" Axle w/ drive shaft Q?s
  • ks65stang
  • Feb 16, 2010
  • Classic Mustang Specific Tech
Replies
11
Views
1K
Classic Mustang Specific Tech Mar 10, 2010
D.Hearne
D
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?