9" Ford rear ends

[minendrews68]

Does anyone know what vehicle the 9" Ford rear ends come out of to fit 1st gen Camaro's? Also, what needs to be done to them to get them to work with the Camaro's? Just trying to see if it's something I can do as opposed to buying a new one. Not knocking the new ones but kinda out of my range price wise.

Carl

[andrewb70]

Don't they call them the "big Torino" ends? So presumable a Torino...and others...LOL

Andrew

[Schwartz Performance]

You'll need new brackets obviously, to place the springs & shock mounts in the correct location. You can buy new leaf spring pads, and weld them to a used 9" housing if you cut the factory brackets off of one.
A Mustang should be close to the same width, if that's what you're looking for. Just gotta make sure it's a 9" not an 8".

Or a bolt in unit with axles & new bearings is around $1000.

-Dale

[lobudget]

I've heard people claim a 71 Mustang unit is a bolt in but I never verified it because all I ever found were 28 spline, open units so I gave up and spent fifty bucks for a very wide housing. Some welding required but it's nice to start with wheels and cut the axle to fit rather than build everything around the housing.

[minendrews68]

You'll need new brackets obviously, to place the springs & shock mounts in the correct location. You can buy new leaf spring pads, and weld them to a used 9" housing if you cut the factory brackets off of one.
A Mustang should be close to the same width, if that's what you're looking for. Just gotta make sure it's a 9" not an 8".



Or a bolt in unit with axles & new bearings is around $1000.

-Dale

How much for the chunk with posi?

[badazz81z28]

How much for the chunk with posi?



On Ebay from Staticz, you can get a housing and axles for $700. The 3rd member all depends on what you get. I have seen some from $800 to $2000+. My Moser cost me about $1400, but that was with a 1350 yoke, Tru Trac, Nodular case etc. You can get a complete 9" for a first gen for $1500.
https://www.ebay.com/itm/Complete-9-Rearend-1967-1968-1969-Chevy-Camaro-9-Inch-Posi-Disc-Brakes/372042864933?hash=item569f7b9925:g:I0MAAMXQhuVRT6V m:rk:6:pf:0

[HotWheelz]

This:
Year & Model Axle Length Notes
1965-1966 Mustang 57.25 inches
1967-1970 Mustang 59.25 inches
1971-1973 Mustang 61.25 inches
1977-1981 Versailles 58.50 inches
1967-1973 Mustang, Torino, Ranchero, Fairlane 59.25 inches to
61.25 inches
1957-1959 Ranchero and station wagon 57.25 inches
1966-1977 Bronco 58 inches
1977-1981 Granada/Versailles 58 inches
1967-1971 Comet, Cougar, Mustang, Fairlane 59.25 inches
1971-1973 Mustang 61.25 inches
1964 Falcon 58 inches
1967 Cougar 60 inches
1967 Fairlane 63.50 inches coil springs
1972 Ford Van 3/4 ton 68 inches
1973-1986 Ford Van 3/4 ton 65.25 inches
1957-1959 Ranchero and station wagon
57.25 inches narrowest 9" housing

1966-1977 Bronco 58 inches 5-on-5 1/2 inch diameter bolt circle
1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or
61.25 inches
1967-1971 Comets, Cougars, Fairlanes 59.25 inches
1975 Mustang II 8" 57.00 inches
1974 Maverick 8" 56.50 inches

Where To Find The Nine Inch Rear Axle
1967-1973 medium and big block Mustangs and Cougars 1966-1971 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks.
1957-1959 V8 Fords and Mercurys
1977-1981 Lincoln Versailles & Trucks

Types Of Nine Inch Axle Housings
1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle bearings, 28 and 31 splines.
1957-1968 passenger car and 1/2 ton truck - medium duty, stronger than Mustang type, 28 and 31 splines.
Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle tubes with flat tops.
1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 inch diameter all the way to the backing plate, coil housings have upper control arm mount

How To Recognize Nine Inch Housing Centers
1957 - no dimples, flat center band up the center of the rear cover, bottom drain plug.
1958-1959 - two dimples on back of housing, flat center band, some had drain holes.
1960-1967 - two dimples, flat center band, oil level hole in back cover.
1963-1977 Lincoln, LTD, Thunderbirds had 9.375 inch centers, housings were cut away at the gasket surface for ring gear clearance, one curved rib at the front top portion of differential, strong but no gears.

Tip On Shortening Nine Inch Axles
1972 and earlier 31 spline axles have the ability to be shortened.

28 spline axles are tapered and cannot be shortened and re-splined.
1973 and later cars have a 5-on-5 bolt circle and the axles cannot be shortened.
1967-1973 Mustang axles can be identified by wheel flange:
Oval hole = 28 splines.
Two large holes and counter-sunk center = 31 splines.

From:

https://www.jalopyjournal.com/forum/threads/9-ford-posi-info-on-spotting-one.373388/

[TheJDMan]

Carl,
Believe it or not, you can buy a new housing ready to bolt in for less money than you will have tied up in buying and modifying a used one. As for center sections I purchased a surplus NASCAR unit.

Here is a Moser 9" housing with conventiononal axles for around $1000
http://www.moserengineering.com/9-ford-housing-axle-package.item

Here you can buy a complete 9" Moser floater set up for the 1st Gen Camaro with brakes and axles for around $2200.
http://www.moserengineering.com/9-Ford-Auto-Cross-Edition-Full-Float-Rear-End-Package.item

I purchased my 9" center section from SRI in Mooresville, NC
http://www.sriperformance.com/Used-Racing-Carriers-and-Lockers-s/728.htm

[CSG]

If you ever make it down to Louisiana I have a housing and shafts out of a 69 in my shop.

[minendrews68]

This:
Year & Model Axle Length Notes
1965-1966 Mustang 57.25 inches
1967-1970 Mustang 59.25 inches
1971-1973 Mustang 61.25 inches
1977-1981 Versailles 58.50 inches
1967-1973 Mustang, Torino, Ranchero, Fairlane 59.25 inches to
61.25 inches
1957-1959 Ranchero and station wagon 57.25 inches
1966-1977 Bronco 58 inches
1977-1981 Granada/Versailles 58 inches
1967-1971 Comet, Cougar, Mustang, Fairlane 59.25 inches
1971-1973 Mustang 61.25 inches
1964 Falcon 58 inches
1967 Cougar 60 inches
1967 Fairlane 63.50 inches coil springs
1972 Ford Van 3/4 ton 68 inches
1973-1986 Ford Van 3/4 ton 65.25 inches
1957-1959 Ranchero and station wagon
57.25 inches narrowest 9" housing

1966-1977 Bronco 58 inches 5-on-5 1/2 inch diameter bolt circle
1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or
61.25 inches
1967-1971 Comets, Cougars, Fairlanes 59.25 inches
1975 Mustang II 8" 57.00 inches
1974 Maverick 8" 56.50 inches

Where To Find The Nine Inch Rear Axle
1967-1973 medium and big block Mustangs and Cougars 1966-1971 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks.
1957-1959 V8 Fords and Mercurys
1977-1981 Lincoln Versailles & Trucks

Types Of Nine Inch Axle Housings
1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle bearings, 28 and 31 splines.
1957-1968 passenger car and 1/2 ton truck - medium duty, stronger than Mustang type, 28 and 31 splines.
Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle tubes with flat tops.
1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 inch diameter all the way to the backing plate, coil housings have upper control arm mount

How To Recognize Nine Inch Housing Centers
1957 - no dimples, flat center band up the center of the rear cover, bottom drain plug.
1958-1959 - two dimples on back of housing, flat center band, some had drain holes.
1960-1967 - two dimples, flat center band, oil level hole in back cover.
1963-1977 Lincoln, LTD, Thunderbirds had 9.375 inch centers, housings were cut away at the gasket surface for ring gear clearance, one curved rib at the front top portion of differential, strong but no gears.

Tip On Shortening Nine Inch Axles
1972 and earlier 31 spline axles have the ability to be shortened.

28 spline axles are tapered and cannot be shortened and re-splined.
1973 and later cars have a 5-on-5 bolt circle and the axles cannot be shortened.
1967-1973 Mustang axles can be identified by wheel flange:
Oval hole = 28 splines.
Two large holes and counter-sunk center = 31 splines.

From:

https://www.jalopyjournal.com/forum/threads/9-ford-posi-info-on-spotting-one.373388/

Wow, that's quite a list! Thanks

[130fe]

What rear suspension are you going with. Leaf spring pads are the common mount but if you decide to go with a non leaf setup, there are companies that sell them with all of the brackets already on there.

[minendrews68]

The reason I'm thinking about this is the 12 bolt rear end under my Camaro I later found out came out of a Chevelle. It is wider than the Camaro one. Right now I have 7" stock rallye wheels front and rear and my rear tires are catching on the fender lip. I don't know if I have too much travel or what. I have the 5 spring leaf springs on the rear. I was also looking at rolling the fenders which I'm going to have to be careful because the car is already painted. With the 9" I could get the correct width setup. Just seems like a costly way to fix a problem.

[icemanrd19]

Gears and everything were still good? Any noise?


Carl,
Believe it or not, you can buy a new housing ready to bolt in for less money than you will have tied up in buying and modifying a used one. As for center sections I purchased a surplus NASCAR unit.

Here is a Moser 9" housing with conventiononal axles for around $1000
http://www.moserengineering.com/9-ford-housing-axle-package.item

Here you can buy a complete 9" Moser floater set up for the 1st Gen Camaro with brakes and axles for around $2200.
http://www.moserengineering.com/9-Ford-Auto-Cross-Edition-Full-Float-Rear-End-Package.item

I purchased my 9" center section from SRI in Mooresville, NC
http://www.sriperformance.com/Used-Racing-Carriers-and-Lockers-s/728.htm

[130fe]

Or just buy a correct width 10/12 bolt. Don’t know what your plans are for the car. My 9” rear makes the typical highway noise (40 mph and up).

[c4racer2]

I doubt you would hear that on my car over the motor. Haven’t been able to on any of the hot rods that I’ve run 9” rears in. Which was anything with 400hp+ unless it was a vette

[c4racer2]

I ran a Detroit locker and 4.56 gears on a 63 impala that ran 11s on all motor - 383. Gotta say zero chance to hear gear noise in that car !!!

[ubekewl454]

Is it a 12 bolt rear end?

[indyjps]

The problem with trying to find one out of an existing car....most are mustang....theres been 40 + years of gearheads in front of you doing the same thing.

Look around your area at stock car racers and 4X4 shops and find a shop that can narrow housings locally. Nothing against the mail order options, you can set one up reasonably by finding local resources.

Axles are your call, I've had multiple sets resplined, heat treated, and launched hard on slicks at the track with no issues, BUT, definitely depends on the skill of the machinist. Mail order stock style axles have become pretty reasonable in recent years.

Depending on your power level, fox body mustang or ranger 8.8 may be a good option for a driver type build thats not seeing track time. Widths and brake setups vary thru the years.