racin66coupe

what cars came withthe ford 9in rearend that bolt up to a 66 stang? i heard a mid seventies versailles does but i am not sure

john721

I sure hope so.... I have one I need to install! BUt to answer the question, yes, the Versailles rear does bolt in, with a few little mods from what I'm told, (leaf pad hole is different size)

Daze

there are several OEM housings used with the correct 52.25” wheel flange to wheel flange width. The first is an actual Mustang 9” housing. A few Mustangs actually came with the 9” housing but these units are nearly impossible to find and when you do find one they’re expensive. Other Ford options are the 1957-1959 full-sized Ford cars, the 1975-1980 Granada/Monarch and the 1977-1980 Lincoln Versailles. With these “other model” donor cars there is one immediate difference between them and an original 1964.5-1966 Mustang 9” housing and that is the Mustang housing has tapered tubing ends. A Non-tapered tubing unit can be used in a first generation Mustang but different u-bolts and mounting plates will be required. If you want to learn more about the Ford 9” in general one of the best sites on the Internet and the one where I got the information for possible correct length donor rear ends is www.ultrastang.com

Or you can do what I did and have a 9" and an 8" welded together

racin66coupe

what would the advantage of getting a 9in and 8in welded together? also, what's would an estimated price be to get a 9in narrowed if it doesnt bolt in?

Daze

I did mine my self but any competent machine shop could probably do it for around $200. Here are a couple of reason that I built this unit for a friend of mine.

1. Having the tapered axle tubing is period correct for a 65-66 Mustang even with a 9" rear end. Of course I only add that because it could be a valid reason, I personally couldn't care less about "period correct" I am putting a Jag IRS unit in my personal Mustang for heavens sake.
2. By using the "period correct" tubing existing u-bolts and mounts can be used so there is no need to source them.
3. Most mustangs came with 8” rear ends so donor housings and axles are easy to find and relatively inexpensive.
4. The 8” axles are 28 spline just like many of the 9” differentials and already the correct length.
5. All the other stock components such as brakes mount up with out having to modify anything
5. Most axle tubes from the donor 9" housing have different spring mount location or all kinds of extra mounts that would need to be cut of if you were only trying to modify the 9”
6. In many cases the O.D. of the 8" tubing is almost the same as the I.D. of the original 9" axle tubing. Making the mod simple.
7. My favorite reason because it is fun

67 evil eleanor

Heres a link or two.
http://www.maliburacing.com/ford_9_i..._nine_inch.htm


http://www.kevinstang.com/Ninecase.htm

remicks

Just curious, but why do you need a 9in? Are you doing something where your 8in wouldn't suffice? Or are you doing a 6 cyl conversion and just need a new rear end all together?

racin66coupe

i am planning on putting 400-500 hp in it and heard it wouldnt take it. it is also a 6 cyl now so i need new axels and what not for a 5 lug conversion

andrewmp6

Cheapest place to buy a 8 inch or 9 inch housing is http://www.perogie.com/Rears.htm you can build up a 8 inch to handle that much power.

racin66coupe

seriosly?