8-inch limited slip differential : Classic Mustangs List Archive : Ford First

8-inch limited slip differential #1
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 20, 2002 12:23 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Walter Boyd)

This is a multi-part message in MIME format.

------=_NextPart_000_007A_01C1E7FB.EDF2BB80
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I have a 67 Mustang and have rebuilt the 289 with a lot of speed parts. =
It has a C4 tranny. However, the car is a dog off the line because of =
an 8-inch open rear end with 2.79 gear. =20

I'd like to upgrade the rear end by increasing the ratio to about 3.50 =
and adding some type of limited-slip. Is there any way to do this =
cheaply and without removing the entire rear end? I'd like to be able =
to find a 8-inch rear end chunk that would work at a junkyard. However, =
I don't even know where to start. Did the 8-inch rear end make it into =
the 1970's or 1980's where I could find one off a junkyard car? Would =
any of them have limited slip differentials? If so, is there a =
reference where I could get the code numbers so that if I find a rearend =
in a junkyard, I'll know what it is? Any help would be much =
appreciated, as I can't afford to spend $ 800 on brand new limited slip =
differential and gears. =20

------=_NextPart_000_007A_01C1E7FB.EDF2BB80
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I have a 67 Mustang and have rebuilt =
the 289 with a=20
lot of speed parts.  It has a C4 tranny.  However, the car is =
a dog=20
off the line because of an 8-inch open rear end with 2.79 gear. =20
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>I'd like to upgrade the rear end by =
increasing the=20
ratio to about 3.50 and adding some type of limited-slip.  Is there =
any way=20
to do this cheaply and without removing the entire rear end?  I'd =
like to=20
be able to find a 8-inch rear end chunk that would work at a=20
junkyard. However, I don't even know where to start.  Did the =
8-inch=20
rear end make it into the 1970's or 1980's where I could find one off a =
junkyard=20
car?  Would any of them have limited slip differentials?  If =
so, is=20
there a reference where I could get the code numbers so that if I find a =
rearend=20
in a junkyard, I'll know what it is?  Any help would be much=20
appreciated, as I can't afford to spend $ 800 on brand new limited slip=20
differential and gears.   </FONT></DIV>
<DIV> </DIV>
<DIV> </DIV></BODY></HTML>

------=_NextPart_000_007A_01C1E7FB.EDF2BB80--

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #2
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 20, 2002 12:40 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Michael Manley)

At 02:42 AM 4/20/02, you wrote:
>I have a 67 Mustang and have rebuilt the 289 with a lot of speed
>parts. It has a C4 tranny. However, the car is a dog off the line
>because of an 8-inch open rear end with 2.79 gear.
>
>I'd like to upgrade the rear end by increasing the ratio to about 3.50 and
>adding some type of limited-slip. Is there any way to do this cheaply and
>without removing the entire rear end? I'd like to be able to find a
>8-inch rear end chunk that would work at a junkyard. However, I don't even
>know where to start. Did the 8-inch rear end make it into the 1970's or
>1980's where I could find one off a junkyard car? Would any of them have
>limited slip differentials? If so, is there a reference where I could get
>the code numbers so that if I find a rearend in a junkyard, I'll know what
>it is? Any help would be much appreciated, as I can't afford to spend $
>800 on brand new limited slip differential and gears.
>
>

You need to learn how to recognize an 8 inch just by looking at it. It's
pretty easy when you start looking at the different rearends Ford used. It
seems like I read that Mustang II's are a good place to look. When you find
one, you need to check the tag for 3L50. The "L" means it is a posi. The
open rears would have 3.50 on the tag. Those numbers correspond the the
gear ratio.

Hope that helps. There is another car that is a good donor, but I can't
remember off the top of my head.

--
Mike Manley
'69 Mustang Mach 1 - 351W/4 speed

Days of the New - daysofthenew.com

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #3
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 20, 2002 08:42 PM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Paul Prince)

This is a multi-part message in MIME format.

------=_NextPart_000_0012_01C1E8A3.61A19FE0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Walter, your problem in finding what you want is that most cars have the peg
leg ratios even if equipped with a limited slip. Remember that fuel economy
was a huge issue in the 70's and 80's. You can look for a Mustang II or a
light truck or van to hopefully get what you want. I think your best bet
might be to just buy a new ring and pinion gear and an Auburn unit new.

Good luck

Paul (Ilderton, Ontario)
1965 Mustang 2+2
1989 Mustang GT Convertible
-----Original Message-----
From: (email redacted)
[mailto sad smiley

email redacted)]On Behalf Of Walter Boyd
Sent: Saturday, April 20, 2002 2:43 AM
To: (email redacted)
Subject: [CM] 8-inch limited slip differential

I have a 67 Mustang and have rebuilt the 289 with a lot of speed parts.
It has a C4 tranny. However, the car is a dog off the line because of an
8-inch open rear end with 2.79 gear.

I'd like to upgrade the rear end by increasing the ratio to about 3.50 and
adding some type of limited-slip. Is there any way to do this cheaply and
without removing the entire rear end? I'd like to be able to find a 8-inch
rear end chunk that would work at a junkyard. However, I don't even know
where to start. Did the 8-inch rear end make it into the 1970's or 1980's
where I could find one off a junkyard car? Would any of them have limited
slip differentials? If so, is there a reference where I could get the code
numbers so that if I find a rearend in a junkyard, I'll know what it is?
Any help would be much appreciated, as I can't afford to spend $ 800 on
brand new limited slip differential and gears.

------=_NextPart_000_0012_01C1E8A3.61A19FE0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><SPAN class=3D778483823-20042002><FONT face=3DArial color=3D#0000ff =

size=3D2>Walter, your problem in finding what you want is that most cars =
have the=20
peg leg ratios even if equipped with a limited slip. Remember that fuel =
economy=20
was a huge issue in the 70's and 80's. You can look for a Mustang II or =
a light=20
truck or van to hopefully get what you want. I think your best bet might =
be to=20
just buy a new ring and pinion gear and an Auburn unit =
new.</FONT></SPAN></DIV>
<DIV><SPAN class=3D778483823-20042002><FONT face=3DArial color=3D#0000ff =

size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D778483823-20042002><FONT face=3DArial color=3D#0000ff =
size=3D2>Good=20
luck</FONT></SPAN></DIV>
<DIV><SPAN class=3D778483823-20042002><FONT =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D778483823-20042002><FONT size=3D2>Paul (Ilderton,=20
Ontario)<BR>1965 Mustang 2+2<BR>1989 Mustang GT Convertible =
</FONT></DIV></SPAN>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
(email redacted)=20
[mailto sad smiley

email redacted)]<B>On Behalf Of =
</B>Walter=20
Boyd<BR><B>Sent:</B> Saturday, April 20, 2002 2:43 AM<BR><B>To:</B>=20
(email redacted)<BR><B>Subject:</B> [CM] 8-inch =
limited=20
slip differential<BR><BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I have a 67 Mustang and have rebuilt =
the 289 with=20
a lot of speed parts.  It has a C4 tranny.  However, the car =
is a=20
dog off the line because of an 8-inch open rear end with 2.79 =
gear. =20
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>I'd like to upgrade the rear end by =
increasing=20
the ratio to about 3.50 and adding some type of limited-slip.  Is =
there=20
any way to do this cheaply and without removing the entire rear =
end?  I'd=20
like to be able to find a 8-inch rear end chunk that would work at a=20
junkyard. However, I don't even know where to start.  Did =
the 8-inch=20
rear end make it into the 1970's or 1980's where I could find one off =
a=20
junkyard car?  Would any of them have limited slip =
differentials? =20
If so, is there a reference where I could get the code numbers so that =
if I=20
find a rearend in a junkyard, I'll know what it is?  Any help=20
would be much appreciated, as I can't afford to spend $ 800 on =
brand new=20
limited slip differential and gears.   </FONT></DIV>
<DIV> </DIV>
<DIV> </DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0012_01C1E8A3.61A19FE0--

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #4
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 12:30 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Chris Kelly)

Rotsa Ruck. An 8" limited is way more unique than a 9" limited and you
just about never find one in the yards anymore. Our big yard charges $75
for a 9" center section, so if anyone sees a limited center, it's gone even
if you don;t need it. Even Chevy guys nab 'em and sell 'em to the circle
trackers or trade for parts. A truck or a fancy upgrade model (mercury?)
is your best bet. The last 8" "posi" I heard about was a couple of years
ago and it was $250 used and neede a rebuild. You might contact Currie
Enterprises and see what they have.
Question - why are you hot for the limited?
>>it is? Any help would be much appreciated, as I can't afford to spend $
>>800 on brand new limited slip differential and gears.

========The Kelly's==============
Chris - (email redacted)
Debbie - (email redacted)
users.abilene.com/~dkelly
Merkel, Texas
=================================

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #5
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 12:51 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Sergio Rodriguez)

Contact me at my p-email. I am buying an 8 inch posi with 3:25 gears for
less than 650. I can give you the persons email address his hobby is
rebuilding rear ends.

-----Original Message-----
From: (email redacted)
[mailto sad smiley

email redacted)] On Behalf Of Chris
Kelly
Sent: Saturday, April 20, 2002 8:26 PM
To: (email redacted)
Subject: Re: [CM] 8-inch limited slip differential

Rotsa Ruck. An 8" limited is way more unique than a 9" limited and you
just about never find one in the yards anymore. Our big yard charges
$75
for a 9" center section, so if anyone sees a limited center, it's gone
even
if you don;t need it. Even Chevy guys nab 'em and sell 'em to the
circle
trackers or trade for parts. A truck or a fancy upgrade model
(mercury?)
is your best bet. The last 8" "posi" I heard about was a couple of
years
ago and it was $250 used and neede a rebuild. You might contact Currie
Enterprises and see what they have.
Question - why are you hot for the limited?
>>it is? Any help would be much appreciated, as I can't afford to spend
$
>>800 on brand new limited slip differential and gears.

========The Kelly's==============
Chris - (email redacted)
Debbie - (email redacted)
users.abilene.com/~dkelly
Merkel, Texas
=================================
_______________________________________________
Classic-mustangs mailing list
(email redacted)
mix.twistedpair.ca/mailman/listinfo/classic-mustangs

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #6
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 01:44 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Sam Weatherby)

From: "Sergio Rodriguez" <(email redacted)>
> Contact me at my p-email. I am buying an 8 inch posi with 3:25 gears for
> less than 650. I can give you the persons email address his hobby is
> rebuilding rear ends.

You are not buying a posi diff in an 8". Since Posi is a GM term for LSD.
Next thing you know we will call our engines 350's and our 'Stangs
Camaro's....
-srw

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #7
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 03:34 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (john)

I currently have some 8 inch traction-locs with varying gear ratios. Prices
are between 375 and 575.At 10:25 PM 4/20/02 -0500, you wrote:
>Rotsa Ruck. An 8" limited is way more unique than a 9" limited and you
>just about never find one in the yards anymore. Our big yard charges $75
>for a 9" center section, so if anyone sees a limited center, it's gone even
>if you don;t need it. Even Chevy guys nab 'em and sell 'em to the circle
>trackers or trade for parts. A truck or a fancy upgrade model (mercury?)
>is your best bet. The last 8" "posi" I heard about was a couple of years
>ago and it was $250 used and neede a rebuild. You might contact Currie
>Enterprises and see what they have.
>Question - why are you hot for the limited?
>>>it is? Any help would be much appreciated, as I can't afford to spend $
>>>800 on brand new limited slip differential and gears.
>
>========The Kelly's==============
>Chris - (email redacted)
>Debbie - (email redacted)
>users.abilene.com/~dkelly
> Merkel, Texas
>=================================
>_______________________________________________
>Classic-mustangs mailing list
>(email redacted)
>mix.twistedpair.ca/mailman/listinfo/classic-mustangs
>

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #8
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 04:04 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Sergio Rodriguez)

Your right. You win a prize?

-----Original Message-----
From: (email redacted)
[mailto sad smiley

email redacted)] On Behalf Of Sam
Weatherby
Sent: Saturday, April 20, 2002 9:44 PM
To: (email redacted)
Subject: Re: [CM] 8-inch limited slip differential

From: "Sergio Rodriguez" <(email redacted)>
> Contact me at my p-email. I am buying an 8 inch posi with 3:25 gears
for
> less than 650. I can give you the persons email address his hobby is
> rebuilding rear ends.

You are not buying a posi diff in an 8". Since Posi is a GM term for
LSD.
Next thing you know we will call our engines 350's and our 'Stangs
Camaro's....
-srw

_______________________________________________
Classic-mustangs mailing list
(email redacted)
mix.twistedpair.ca/mailman/listinfo/classic-mustangs

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #9
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 21, 2002 11:14 PM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) ((email redacted))

See how easy that was? All ya gotta do is
say "Bah, you'll never find one...;~)
>
I currently have some 8 inch traction-locs with
varying gear ratios. Prices
> are between 375 and 575.At 10:25 PM 4/20/02 -
0500, you wrote:

Chris

---------------------------------------------
This message was sent from webmail.bitstreet.com
webmail.bitstreet.com/

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #10
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 22, 2002 01:51 AM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) (Wal Marshall)

> See how easy that was? All ya gotta do is
> say "Bah, you'll never find one...;~)

Hehe...I like your style Chris...!!

(Must try that technique on some of my hard to find bits..:-)

Cheers

Wal Marshall
www.NZMustang.com

Reply

Was this post helpful or interesting?

Yes No Thank

8-inch limited slip differential #11
mailbot Mail List Archive Bot ., Online, USA	Topic Creator (OP) Apr 22, 2002 11:42 PM Joined 15 years ago 59,279 Posts

This read-only message was archived from a public mail list.
Mail From: (email redacted) ((email redacted))

--part1_192.5e4f73a.29f623d3_boundary
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

In a message dated 04/21/2002 1:34:55 AM Central Daylight Time,
(email redacted) writes:

> I currently have some 8 inch traction-locs with varying gear ratios. Prices
> are between 375 and 575

I may be interested in one of your units, can you email me the gear ratios &
prices?

bill
stuck with an open 2.80 or 3.00

--part1_192.5e4f73a.29f623d3_boundary
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

<HTML><FONT FACE=arial,helvetica><FONT COLOR="#ff0000" SIZE=2 FAMILY="SANSSERIF" FACE="Century Gothic" LANG="0">In a message dated 04/21/2002 1:34:55 AM Central Daylight Time, (email redacted) writes:<BR>
<BR>
</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I currently have some 8 inch traction-locs with varying gear ratios. Prices<BR>
are between 375 and 575</BLOCKQUOTE><BR>
</FONT><FONT COLOR="#ff0000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Century Gothic" LANG="0"><BR>
I may be interested in one of your units, can you email me the gear ratios & prices?<BR>
<BR>
bill<BR>
stuck with an open 2.80 or 3.00</FONT></HTML>

--part1_192.5e4f73a.29f623d3_boundary--

Reply

Was this post helpful or interesting?

Yes No Thank

Classic Mustangs List Archive

8-inch limited slip differential

Sorry, you can't reply to this topic. It has been closed.