cheapstang68

Good eveing ladies and gents,
I am new to the site, and can saw that it is great.
But first of many question is how to identify what type of rear end I have.
The car was originally an 200 cid. 68 Mustang. It now has a 302 which was put correctly. But to me, not much else was done to support the new 302.
It is an automatic, c4, 302 and originally had a 2bbl carb and intake manifold.
Any numbers on the rear end to identify?

Thanks for the help.

Mike

scootchu

Does it have a tag attached to one of the bolts?
This site can help.
http://www.kevinstang.com/Ninecase.htm

cheapstang68

I havent broken open the differential yet, but there is nothing on the outside.

Mustangdemon67

well ill tell you how you can check if its an 8in or 9in. if you can fit a socket on the bottom bolts of the third member, then its an 8 inch. if there is no clearance for a socket then its a 9 inch. take a look here




9 inch ^






8 inch ^

sideshow_downs

Being a factory 6 it may have the 7.5 rear end. If the back diff cover unbolts it would be the 7.5

Xargon321

take a picture front and back of you can that will tell us if its a 7.25 rear that the 6's used or a 8" that the v8 used from there you can see if there is a id tag on the side of differential

cheapstang68

Ill take a picture of it tonight, and upload it. But it is a sealed unit as far as the 3rd member is concerned. The rear opens, but the front is sealed.

cheapstang68

Here it is....
Or not. it wont let me attach any images. I guess im not that cool yet.

andrewmp6

Count the lug nuts if there is 4 on each rear wheel its a 7.5 if its 5 lug then its a 8 inch or 9 inch.If your trying to upload the picture to the forum the easiest way i know is sign up to photobucket.com its free upload the picture on there and just copy and paste the img link on the photo.

cheapstang68

Yea, its got 4. Looks like Ill have to break it and get a new one.

Thanks for help guys.