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

"Old" 9" Read End

  • Thread starter Thread starter 97fxdwg
  • Start date Start date Jun 10, 2004
9

97fxdwg

New Member
May 7, 2004
105
0
0
Jun 10, 2004
#1
  • Jun 10, 2004
  • #1
Someone helped me out a little but since I hijacked the thread I thought I better start a new one. I'm still learning all about my "new" 68 coupe and while looking things over saw that my rear end had two dimples on the aft end of the housing. So its a mid 50's to mid 60's I'm told. Is that a good rear end for a 302 making perhaps 250-275hp? (Could be more but I don't want to make a stupid guess.) How can I find out the gearing?
Thanks, and I'm learning a hell of a lot just by going through these posts, whether they pertain to my ride or not. There is a lot of knowledge on tap here. Now if we could only harness it for good rather than evil!

 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Jun 10, 2004
#2
  • Jun 10, 2004
  • #2
97fxdwg said:
Someone helped me out a little but since I hijacked the thread I thought I better start a new one. I'm still learning all about my "new" 68 coupe and while looking things over saw that my rear end had two dimples on the aft end of the housing. So its a mid 50's to mid 60's I'm told. Is that a good rear end for a 302 making perhaps 250-275hp? (Could be more but I don't want to make a stupid guess.) How can I find out the gearing?
Thanks, and I'm learning a hell of a lot just by going through these posts, whether they pertain to my ride or not. There is a lot of knowledge on tap here. Now if we could only harness it for good rather than evil!

Click to expand...
First of all, before assuming it's a 9" rear, get back under it and check the center section. If you can remove the two bottom nuts from it with a rachet and socket, it's an 8" rear. If you can only remove them with an end wrench, it's an 9". Nine inch rears will easily handle that kind of power. But you should really worry about how the power is put to the ground. It's not really how much horse power it will handle, it's the sudden application of torque combined with too much traction that breaks rearends and axles.
 
9

97fxdwg

New Member
May 7, 2004
105
0
0
Jun 10, 2004
#3
  • Jun 10, 2004
  • #3
Thanks - When I get out of the Arctic and back to the Mustang, it'll be "check with the wrench or the socket time". End wrench = 9". Got it.
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Jun 10, 2004
#4
  • Jun 10, 2004
  • #4
send some of that "arctic" down here, we need it, bad
 
9

97fxdwg

New Member
May 7, 2004
105
0
0
Jun 10, 2004
#5
  • Jun 10, 2004
  • #5
You can have it. Today its 30°, misty, winds 30mph. Take all you want. Please. :worship:
 
D

D.Hearne

New Member
Sep 29, 2000
11,730
6
0
south louisiana
Jun 10, 2004
#6
  • Jun 10, 2004
  • #6
95 degrees here, 70% Humidity, only June and I miss winter already
 
You must log in or register to reply here.

Similar threads

M
Another Newbie
  • markb
  • Dec 1, 2025
  • The Welcome Wagon
Replies
5
Views
279
The Welcome Wagon Dec 7, 2025
markb
M
5
Hello Everyone !
  • 5150K
  • Jul 3, 2026
  • The Welcome Wagon
Replies
0
Views
168
The Welcome Wagon Jul 3, 2026
5150K
5
K
3.8 T5 & Bellhousing to 1987 Lincoln 5.0
  • ks65stang
  • Mar 2, 2026
  • Other Auto Tech
Replies
3
Views
524
Other Auto Tech Mar 3, 2026
Noobz347
F
Ford 460 swap
  • Ford460
  • Sep 13, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
6
Views
425
1996 - 2004 SN95 Mustang -General/Talk- Sep 14, 2026
Ford460
F
B
Where to go from here on my build…
  • B0udreaux
  • Jul 14, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
412
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 18, 2026
AeroCoupe
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?