Posi Rear question

1

1WildII

Member

Oct 6, 2003

199

0

16

Anacortes, Wa

Apr 12, 2004

#1

• Apr 12, 2004

• #1

I need posi!!! I was wondering where to look for a posi unit and what is compatable with my rear end. Also how much am I looking at when the job is complete? Thanks in advance.

Chris

 

G

Gael

Founding Member

Jan 26, 2002

649

1

17

Tucson, AZ

Apr 12, 2004

#2

• Apr 12, 2004

• #2

Well, first question is, which rear end do you have? You either have 7.5" or 8". I bought mine off ebay, the whole center section. So I unbolted everything, took the axles out, drained it, bolted the new one in, and filled it with fluid.

I'm sure it wasn't that easy, but that's what I remember.

 

1

1WildII

Member

Oct 6, 2003

199

0

16

Anacortes, Wa

Apr 12, 2004

#3

• Apr 12, 2004

• #3

The rear end in the car is what i believe to be the stock one. Anyone know what it was from the factory?

 

chaka

Founding Member

Mar 1, 2002

1,342

0

0

Boston, MA

Apr 12, 2004

#4

• Apr 12, 2004

• #4

Here are some links that should be of some help.

http://www.mustangii.org/decoder/axle/

http://www.mustangii.net/axle_ratio.asp

 

G

Gael

Founding Member

Jan 26, 2002

649

1

17

Tucson, AZ

Apr 12, 2004

#5

• Apr 12, 2004

• #5

If I remember right, aren't the 74-77 Mustangs all 7.5" rears? And the 78 you could've had a 7.5 or an 8"?

 

Blue coyote

Founding Member

Sep 14, 2002

347

0

16

North America's hemp-basket, BC, Canada

Apr 12, 2004

#6

• Apr 12, 2004

• #6

Gael said:

If I remember right, aren't the 74-77 Mustangs all 7.5" rears? And the 78 you could've had a 7.5 or an 8"?

Click to expand...

I think you may mean the 6.75" but I thought the difference was that some 4 cylinders got the smaller diff, and the V6/V8 cars all got the 8"...

The 7.5" was used in 79 and newer(Fairmont-based) Mustangs, as well as the Ranger (some 2.0 litres got the 6.75"), Bronco II, and Aerostar

 

Z

zwhitr

Founding Member

Aug 26, 2001

847

0

16

Goldsboro, NC

Apr 12, 2004

#7

• Apr 12, 2004

• #7

Gael said:

Well, first question is, which rear end do you have? You either have 7.5" or 8". I bought mine off ebay, the whole center section. So I unbolted everything, took the axles out, drained it, bolted the new one in, and filled it with fluid.

I'm sure it wasn't that easy, but that's what I remember.

Click to expand...

I Bought mine off ebay also well at least the Trac-loc unit then I contacted the guy and he built the entire pumpkin for me with 3.40 gears he had laying around promised satisfaction guaranteed 600 bux --PM/email me I'll send you his info

Currie Enterprise and others wanted 800-900 dollars.

Removal/installation was the same a Gael except I needed an axle puller on one side rented for $8.00

 

N

Northern J II

New Member

Jul 25, 2003

157

0

0

Belwood Ontario Canada

Apr 13, 2004

#8

• Apr 13, 2004

• #8

Bro:

I would consider a powertrax

www.powertrax.com

P/N 1810.

The unit replaces the spider gears, it can be installed in your driveway in an hour, without special tools or need to re-lash the gears. wow, I sound like a salesman.....oh wait

If I ever get rid of my spool, this is the unit I am going to buy!

 

jeffnoel

Founding Member

Aug 31, 2002

1,638

5

37

Clovis, CA

Apr 13, 2004

#9

• Apr 13, 2004

• #9

OK I'm convinced, how much $$ are the Powertrax units?

 

N

Northern J II

New Member

Jul 25, 2003

157

0

0

Belwood Ontario Canada

Apr 13, 2004

#10

• Apr 13, 2004

• #10

This Forum is sponsored by a Speed Shop! It would be a conflict of interest for me to quote you a price, besides I come here to duck the fog, not work Oh, and then there is the distance thing (Canadian eh!)

 

1970impala

Please God, somebody find me some WHITE CARGO PANE

Founding Member

Jan 22, 2002

1,450

2

38

Pennsylvania

Apr 14, 2004

#11

• Apr 14, 2004

• #11

my 77, 302 came with a stock 8".