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  • Fox 5.0 Mustang Tech

sn95 axles in a fox housing

  • Thread starter Thread starter mustanglx91
  • Start date Start date Aug 22, 2011

mustanglx91

Member
Sep 12, 2007
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Wilkes-Barre PA
Aug 22, 2011
#1
  • Aug 22, 2011
  • #1
Im sure there is a thread somewhere about this but my question is will the sn95 axles fit in a fox rear housing. If so how wider wil it be and is there any issues with it? Thanks.
 

MFE92

10 Year Member
Aug 25, 2010
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Phoenix
Aug 22, 2011
#2
  • Aug 22, 2011
  • #2
They'll fit just fine, but they're 0.75 inches longer per axle, 1.5 inches wider total, and the brake setup needs to be adapted accordingly.
 

mustanglx91

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Aug 23, 2011
#3
  • Aug 23, 2011
  • #3
Does that mean I need to run longer lines?
 

mustanglx91

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Aug 23, 2011
#4
  • Aug 23, 2011
  • #4
I understand the necessary brackets and such I need if that what you are talking about.
 

lancec2c30

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Aug 24, 2011
#5
  • Aug 24, 2011
  • #5
I did this when I went 5 lug. If you're going rear disc as well, you'll need the caliper brackets and the brake line off the sn95 housing to mate up with the sn fittings on the calipers.

Otherwise, I think they sell a brake line to adapt the fox hard line to the calipers.
 

mustanglx91

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Sep 12, 2007
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Aug 24, 2011
#6
  • Aug 24, 2011
  • #6
Thanks. ive read of other people buying the adaptor kit. Think im going to start gathering the pieces to do the swap.
 

Gearbanger 101

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#7
  • Aug 24, 2011
  • #7
if you're not concerned about going with rear disk brakes, I suggest you take a look at one of the many budget 5-lug conversion kits out there right now. Late Model Restoration sells a complete 5-lug kit, including fluids for under $390. It's not ever work driving to the various wreckers to scrounge for parts at that price.
 

JungleJoe

I was like well chit..Im missing something
Jul 25, 2011
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Mo.
Aug 24, 2011
#8
  • Aug 24, 2011
  • #8
If your wanting to do this for the 5 lug conversion, get the 2 LEFT side axles out of a ranger, plus they are stronger!
Did it back in the day on my 93 vert.
 

Gearbanger 101

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#9
  • Aug 24, 2011
  • #9
JungleJoe said:
If your wanting to do this for the 5 lug conversion, get the 2 LEFT side axles out of a ranger, plus they are stronger!
Did it back in the day on my 93 vert.
Click to expand...
.....what's exactly is suposed to make them stonger? They're the same 1040 grade 28-spline carbon steel axles the stock 4-lug and 4-lug Mustang versions are? It took next to no effort for me to twist one off with my old 5.0L powered Ford Ranger back in the day....it it didn't even make that much power?
 

JungleJoe

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Jul 25, 2011
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Mo.
Aug 25, 2011
#10
  • Aug 25, 2011
  • #10
The ones I used were 31 spline. thats what makes them stronger. its been over 15 years ago I done that, I dont remember what year they came out of. Another guy I know went 9's on ford ranger axles,so I dont know how you broke yours so easily.
 

Mustang5L5

That is…until I whipped out my Bissell
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Aug 25, 2011
#11
  • Aug 25, 2011
  • #11
Just to be clear, only 1994-1998 Sn95 axles will fit. 99-04 axles are longer and wont fit the 86-98 8.8 housing.

Grab the axles from a V6 or V8...same thing
 
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C6AE

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Mar 22, 2004
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Ma.
Aug 25, 2011
#12
  • Aug 25, 2011
  • #12
Mustang5L5 said:
Just to be clear, only 1994-1998 Sn95 axles will fit. 99-04 axles are longer and wont fit the 86-98 8.8 housing.

Grab the axles from a V6 or V8...same thing
Click to expand...
Anybody know the lengths? I picked up a set of 5 lug at a swap... whatya bet they're the long ones...
 

90lxcoupe

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#13
  • Aug 25, 2011
  • #13
You can also run stock length 5 lug axles with the factory GT disc brake brackets. You have to cut a section out of the bracket so it slides over the opposite side of the rear end housing.
 

Gearbanger 101

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#14
  • Aug 25, 2011
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JungleJoe said:
The ones I used were 31 spline. thats what makes them stronger. its been over 15 years ago I done that, I dont remember what year they came out of. Another guy I know went 9's on ford ranger axles,so I dont know how you broke yours so easily.
Click to expand...

Ahh, it that case, I agree. The '02-up FX4 31-spine axles are stonger, but those aren't the ones that everyone is talking about swapping over for the "budget" 5-lug swap. The ones being discussed (or at least that was my impression) are the standard 28-spline left side Ranger axles that are a direct swap into the stock Mustang diff. The 31-spline axles won't work unless you upgrade t0 a 31-spline differential as well.

I'm assuming your friend went 9's with the 31-spline units? Because if he did it with the 28's, he didn't do it for long. I twisted one off going spinning from gravel, onto pavement in my '85 4x4 with 31x10.5" tires. The stock 28-spline axles (Mustang, Ranger or otherwise) have never been known for being overly "tough".
 

JungleJoe

I was like well chit..Im missing something
Jul 25, 2011
184
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Mo.
Aug 25, 2011
#15
  • Aug 25, 2011
  • #15
Gearbanger 101 said:
Ahh, it that case, I agree. The '02-up FX4 31-spine axles are stonger, but those aren't the ones that everyone is talking about swapping over for the "budget" 5-lug swap. The ones being discussed (or at least that was my impression) are the standard 28-spline left side Ranger axles that are a direct swap into the stock Mustang diff. The 31-spline axles won't work unless you upgrade t0 a 31-spline differential as well.

I'm assuming your friend went 9's with the 31-spline units? Because if he did it with the 28's, he didn't do it for long. I twisted one off going spinning from gravel, onto pavement in my '85 4x4 with 31x10.5" tires. The stock 28-spline axles (Mustang, Ranger or otherwise) have never been known for being overly "tough".
Click to expand...
Yes , you are right friend, I guess I should have clarified that!!sorry about that!
 
R

Rideordie1720

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May 14, 2019
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Mishawaka
Sep 23, 2019
#16
  • Sep 23, 2019
  • #16
I have a question for this one. I understand that the sn95 axle will fit a fox since they are all 8.8 rear ends. But everyone was talking 86-93 fox. My question is, is there a difference with a 85 fox? Will everything still fit?
 

Mustang5L5

That is…until I whipped out my Bissell
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Sep 23, 2019
#17
  • Sep 23, 2019
  • #17
Rideordie1720 said:
I have a question for this one. I understand that the sn95 axle will fit a fox since they are all 8.8 rear ends. But everyone was talking 86-93 fox. My question is, is there a difference with a 85 fox? Will everything still fit?
Click to expand...


Yes, 94-98 Axle shafts and brakes will fit a 1985 7.5" housing. The 7.5" axle was also used in those year V6 Mustangs.
 
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