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What can I get a 8.8 out of?

  • Thread starter Thread starter 84blkstang
  • Start date Start date Mar 10, 2004

84blkstang

Member
Jun 4, 2003
544
1
18
Springfield MO
Mar 10, 2004
#1
  • Mar 10, 2004
  • #1
What vehicals came with a 8.8 that will bolt into my foxbody the 7.5 sucks and only one wheel spins so i am due for a new one. I looked for the SC or TC but i cant find one so that is out of the question.
 

Legendary

Founding Member
Oct 10, 2002
1,925
0
0
City of Angels
Mar 10, 2004
#2
  • Mar 10, 2004
  • #2
The turbocoupe rearends are 8.8 and they come with 3.55 (stick) or 3.73 (auto) gears. Oh yeah, They're disc brakes too.
 

icarus

Founding Member
Jul 29, 2000
433
0
0
Frederick, MD
Mar 10, 2004
#3
  • Mar 10, 2004
  • #3
I was going to take an 8.8 out of an 89 crown vic. I just assumed it was an 8.8. Never really got to the point of actually getting my hands on one because I found a TC rear end instead. Just a thought to start your search.

Mark..
 

88stangmangt

Active Member
Nov 25, 2003
2,332
1
48
Stafford,VA
Mar 10, 2004
#4
  • Mar 10, 2004
  • #4
f-150's and i think the full size bronco's if only one wheel spins then you either dont have posi or need a trac-loc rebuild but still the 7.5inch rears suck @ss.
 

89MustangGX

I have nothing productive to add!
Jul 3, 2001
10,262
1
0
Mill Creek, WA
Mar 10, 2004
#5
  • Mar 10, 2004
  • #5
AFAIK, the only ones that are same dimensions and a direct bolt-in will be 86-93 Fox bodies.
 
T

Tillman86

New Member
Mar 7, 2004
16
0
0
Mar 10, 2004
#6
  • Mar 10, 2004
  • #6
did 86 GT's come with 8.8 ?
 
B

battyice

New Member
Mar 7, 2004
153
0
0
West Chazy, NY
Mar 11, 2004
#7
  • Mar 11, 2004
  • #7
I believe 85's were the last year of the 7.5" ring gear, 86 and up should have the larger ring gear. Someone correct me if I'm wrong.
 
S

SmockDoiley

New Member
Jun 14, 2003
1,591
2
0
San Diego, CA
Mar 11, 2004
#8
  • Mar 11, 2004
  • #8
86 was the first year with the 8.8. The 7.5 actually is pretty strong. I just replaced mine only because I'm making 600 plus horsepower. The 7.5 put up with 13.8 quarters with drag radials and 4.10's. I even ran it for awhile with my current setup. True the 8.8 is stronger, but I doubt youll break a 7.5. The reason your only peeling one tire is because you need to rebuild your trak-loc. If you want, you can have your local rearend shop find an 8.8 housing for you, and then go from there. Your only choices are 86-95 fox bodies which would include T-birds. Though the 94-95s are slightly longer, it will still clear with no problems. I'd get one of those because they are newer, have disc brakes and 5 lug.
 

whitemustang89

Member
Dec 15, 2003
166
0
17
in the sticks of arkansas
Mar 11, 2004
#9
  • Mar 11, 2004
  • #9
uhhhh why dont you just find a wrecked fox and take its axle? as stated above 86-93 will bolt in
 

trbkrb

Founding Member
Jun 4, 2001
1,976
4
39
Houston, TX
Mar 11, 2004
#10
  • Mar 11, 2004
  • #10
The 8.8 housings for the following cars are the same dimensionally and will bolt into a Mustang:

86-98 5.0 and GT Mustangs (the 99+ 8.8 housing is wider)
87-88 Tbird Turbocoupes
86?-92 Mark VII

I'm sure there may be others, but these are the ones I know of. All the brake parts and axles interchange, so you can use your drum setup with any of these housings if you don't want the disc. The best all around one is the TC due to the gears and traction loc. The Mark VII does not have the quad shock mounts and only a few had traction loc, with 3.08 or 3.27 gears. Plus I've heard that the lower control arm mounts are a bit different resulting in a different pinion angle, but do not know this for sure.

I have a Frankenstein rear end in my Mustang with a TC housing and gears, Ranger axles, and Mark VII brakes.
 

84blkstang

Member
Jun 4, 2003
544
1
18
Springfield MO
Mar 11, 2004
#11
  • Mar 11, 2004
  • #11
When I called the salvage yards looking for a tranny, the people laughed and said good luck at almost everyone i called. then i called looking for a 8.8 inch rearend out of a stang and no one seems to have one worth a damn so I want to do the swap from another vehicle. also how hard it is to rebuild the trac-lock, and how much will it cause?
 

YellowLightning

New Member
Feb 26, 2004
146
0
0
Montana
Mar 11, 2004
#12
  • Mar 11, 2004
  • #12
If you do put in a rear end with disks, do you have to do anything else to the brake system, or just hook up the brake lines to the disk brakes and go?
 
S

SmockDoiley

New Member
Jun 14, 2003
1,591
2
0
San Diego, CA
Mar 12, 2004
#13
  • Mar 12, 2004
  • #13
You cant use the Lincoln rearends because they are like 1.25 inches too long on each side. Also, to do a disc brake rear swap you need to upgrade the MC and install a PV and gut the stock one.
 

trbkrb

Founding Member
Jun 4, 2001
1,976
4
39
Houston, TX
Mar 12, 2004
#14
  • Mar 12, 2004
  • #14
To make rear disc work correctly, you need to get a new MC and adjustable proportioning valve, along with a few other things. Read Matt's website for more info: http://svo73mm.cjb.net

And regarding the Lincoln Mark VII........yes the axles and the stock disc brake assembly is 1.25" longer on each side, for a total of 2.5" wider, BUT the actual 8.8 rear end housing from axle flange to axle flange is the same size as the Fox 8.8 and also the same as the 7.5 rear end housings. If you reuse the stock drum brake setup like I mentioned, it will all fit just like the Mustang 8.8 or 7.5. Or you can do like I did and modify the disc brake brackets to use stock Fox length axles, like also mentioned on Matt's website.
 
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