9" rear for a 1970 mustang

fastlane351c

New Member

Jan 2, 2012

17

0

1

jacksonville nc

Jan 15, 2012

#1

• Jan 15, 2012

• #1

hows it goin everyone... im looking to upgrade my rear to a 9"... does anyone know what vehicles would have one that would bolt right up to a 70 coupe easily or with little modifycation. also i would like to put a set of 373s in it do u know of a good place to pick one up... and finally the rear thats in it now is an 8inch with 279 gears... could that possibly be worth anything? thanks

 

Couped Up

Member

Feb 3, 2010

92

4

8

Monroe, Washington

Jan 16, 2012

#2

• Jan 16, 2012

• #2

Although I'm no expert, You should be able to use a 9" from any '68 - '70 cougar, and it should be a direct bolt in. It's possible that the more recent years would have the vent on the wrong side, but I'm not sure.... Maybe someone will chime in.

8" Value? Probably not much, But if you're planning on running the Stock type 9", your brakes, and axles will interchange, unless you're planning on running a 31 spline.

 

68dustin

Member

Oct 8, 2008

173

2

19

Jan 16, 2012

#3

• Jan 16, 2012

• #3

i got my 9" out of a 70 mustang... it fit perfectly in my 68.

 

Hack

15 Year Member

Mar 23, 2004

1,945

13

69

Minneapolis

Jan 17, 2012

#4

• Jan 17, 2012

• #4

The swap info is stickied at the top of the page. 3.73 chunks can be had used out of some 80s pickups and Broncos.

 

K

kool66

New Member

Jun 20, 2011

5

0

2

Jan 17, 2012

#5

• Jan 17, 2012

• #5

67-70 mustangs,67-70 Cougars, and 66-69 Fairlanes /Cyclones all fit

 

horseballz

10 Year Member

Sep 30, 2009

824

19

49

Las Vegas, NV

Jan 17, 2012

#6

• Jan 17, 2012

• #6

While the Fairlane/Cyclone rear is the correct overall width, the spring pads are farther apart than on Mustang/Cougar and will require relocation and the vent/brake hose mount is on the passenger side instead of driver side. These issues are fairly easy to overcome but should be known before attempting the swap.
HTH,
Gene