Vintage Mustang Forums banner

1 - 10 of 10 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter #1
Would a sn95 axle fit in a 1965 mustang? What modifications need to be done for this swap?

Thanks RJ
 

·
Premium Member
68 Mustang Coupe
Joined
·
4,123 Posts
Iirc the sn95 rear axle got wider in 99. You will have to narrow it because it's around two inches wider than the 65-66rear.

If you're wanting an 8.8 find one from an explorer, they typically come with disc brakes, decent gear ratios and you can take two short side axles and cut down the long side of the tube to get a near perfect fit in a 65/66.
 
  • Like
Reactions: gt350sr

·
Premium Member
Joined
·
13,156 Posts
The SN95 did not have leaf springs so you'll need to cut all of the mounting brackets off of the housing and weld leaf spring perches on.
 

·
Registered
Joined
·
4,061 Posts
What are you doing on the front end? If you are doing anything to widen the stance on the front, you may want to calculate that in to your width requirements for the rear. If you use the SN95 full width on the rear, you can run modern Mustang wheels without spacers. You would still need spacers on the front unless you either ran a wider front stance or used spacers.
 

·
Registered
Joined
·
4 Posts
Discussion Starter #5
What are you doing on the front end? If you are doing anything to widen the stance on the front, you may want to calculate that in to your width requirements for the rear. If you use the SN95 full width on the rear, you can run modern Mustang wheels without spacers. You would still need spacers on the front unless you either ran a wider front stance or used spacers.
I have an mustang II IFS kit that I am going to weld in.
 

·
Registered
Joined
·
4,061 Posts
I have an mustang II IFS kit that I am going to weld in.
Various versions of Mustang II setups so I would check the track width, probably stock. If you want "square" setup, same wheels and tires on all four corners and no spacers, narrow the rear end to same stock width. If you are willing to run spacers on front or willing to have different front and rear wheels you could install the spring mounts and run it as is.
 

·
Registered
Joined
·
37,647 Posts
The SN95 8.8 would be a bit wider than the original axle... The original '65-66 housing is 52-1/4" flange-to-flange. Here's all the 8.8 info you should need....


The 8.8 axle was released in '83 and made its way into the fox platform in '86.

Factory Mustang and other fox body cars.
Housing width is 59.25" with zero center section offset. Axle shaft length is 29.25"
Brakes are 9" or 10" 4 lug Drums

Gear ratios from factory are normally
2.26 for 4.2L v8 auto 78-82
2.47 for 5.0l v8 auto 79-??
3.08 for v8 all trans 82-84/5ish?
2.73 for v8 manual 87-93
3.27 for v8 auto 87-93
3.27 in 7.5" for N/A 4 cylinder
3.45 in 7.5" for turbo 4 cylinder (except 85 and 86 SVO and below 87-88 TC)

Popular Swaps
All numbers below are based on comparison to factory fox body mustang.

87-88 Turbo Coupe and 93 Cobra 8.8" axles are basically the same with 30" (3/4" longer) axle shafts meaning, they are 1.5" wider overall.
brakes are 10" 4 lug vented rotors

Gear ratios from the factory:
3.55 for the manuals
3.73 for the autos
3.08 on the 93 Cobra

87-92 Lincoln Mark VII 8.8 axles are 30.5" (1.25" longer) per side, meaning total width is 2.5" wider.
brakes are 10.5" 5 lug vented rotors
gearing is normally 3.27 or 3.08

SVO and 87-93 Saleen shared these axle shafts.

94-98 SN95 8.8 and 7.5 share the same 30" (3/4" longer) axle shafts, meaning they are 1.5" wider overall.
have two options for rear brakes

GT and v6
10.5" 5 lug non-vetned rotors
cobra (non IRS only?)
11.65" 5 lug vented rotors

99-04 SN95 housings are 3/4" longer per side, and the axles are 1.5" longer per side but they continue to share the 94-98 rear brakes.
 
1 - 10 of 10 Posts
Top