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Ford 9"
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projekt70chevelle
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PostPosted: Sun Jan 07, 2007 5:46 pm    Post subject: Ford 9" Reply with quote

What ford 9" has the closest width to the 68-72's?
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Big Dave
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PostPosted: Sun Jan 07, 2007 7:18 pm    Post subject: Reply with quote

Just like a lot of people build SBCs with the only Chevy part being the timing cover, most "Ford" 9 inch rears have no Ford parts in them whatsoever, with the exception of possibly the backing plates for the brakes. You order everything as a "new part" from the housing to the nodular iron aftermarket center section and aluminum pinion bearing support. Everything is made just the way you like it powder coated your favorite color (I'm trying to keep from breaking into the "You deserve a break today" Burger King song here).

Big Dave
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af2
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1933 Willys Coupe

PostPosted: Sun Jan 07, 2007 8:05 pm    Post subject: Re: Ford 9" Reply with quote

projekt70chevelle wrote:
What ford 9" has the closest width to the 68-72's?


I was thinking mid sized Fords! They are close! Measuring is the best! !

As you know I prefer the Dana 60
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pro60chevy
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PostPosted: Sun Jan 07, 2007 8:12 pm    Post subject: Reply with quote

This might help.

Width: all measurements are flange to flange
67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches
65-66 Mustang = 57.25 inches
67-70 Mustang = 59.25 inches
57-59 Ranchero and station wagon = 57.25 inches
77-81 Versailles = 58.50 inches
1957-64 Ford = 57.25 inches
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af2
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1933 Willys Coupe

PostPosted: Sun Jan 07, 2007 8:21 pm    Post subject: Reply with quote

pro60chevy wrote:
This might help.

Width: all measurements are flange to flange
67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches
65-66 Mustang = 57.25 inches
67-70 Mustang = 59.25 inches
57-59 Ranchero and station wagon = 57.25 inches
77-81 Versailles = 58.50 inches
1957-64 Ford = 57.25 inches


I was thinking later Fords on the width. I remember the 57 as being the most narrow!
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clay
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1972 Chevrolet Nova

PostPosted: Sun Jan 07, 2007 9:08 pm    Post subject: Reply with quote

I was thinking I saw on Trucks that they removed a 9" from under an old Bronco that they said was pretty narrow and car guys liked to get their hands on them. Maybe....Clay
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projekt70chevelle
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PostPosted: Mon Jan 08, 2007 3:12 pm    Post subject: Reply with quote

Well I know the town cars have the closest measurement to my 12 bolt which is 60.75 and the lincoln is 61". but thanks for the help guys, but I prefer a ford 9 over a D60 Smile

Only thing is I dont know which were 31 and 27 spline
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af2
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1933 Willys Coupe

PostPosted: Mon Jan 08, 2007 4:03 pm    Post subject: Reply with quote

Can I ask why you don't want the 12 bolt? With C-clip eliminators they are strog as hell. You have to put alot of money in a 9" to eliminate some of their short falls.
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alfonsothefons
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1978 Chevrolet Malibu

PostPosted: Mon Jan 08, 2007 4:14 pm    Post subject: Reply with quote

for that matter a chrysler 8.75 with huge axles and the thicker pinion,usedfor years for digger ,funnies.,love that center chunk
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10sec.et
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1969 Oldsmobile Cutlass

PostPosted: Mon Jan 08, 2007 5:17 pm    Post subject: Reply with quote

af2 wrote:
Can I ask why you don't want the 12 bolt? With C-clip eliminators they are strog as hell. You have to put alot of money in a 9" to eliminate some of their short falls.


DITTO!!!

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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af2
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1933 Willys Coupe

PostPosted: Mon Jan 08, 2007 6:04 pm    Post subject: Reply with quote

10sec.et wrote:
af2 wrote:
Can I ask why you don't want the 12 bolt? With C-clip eliminators they are strog as hell. You have to put alot of money in a 9" to eliminate some of their short falls.


DITTO!!!


Sounds like you have been there Shocked secret
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10sec.et
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1969 Oldsmobile Cutlass

PostPosted: Mon Jan 08, 2007 6:52 pm    Post subject: Reply with quote

af2 wrote:
10sec.et wrote:
af2 wrote:
Can I ask why you don't want the 12 bolt? With C-clip eliminators they are strog as hell. You have to put alot of money in a 9" to eliminate some of their short falls.


DITTO!!!


Sounds like you have been there Shocked secret


Laughing Laughing Laughing Neutral Sad cry baby

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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Big Dave
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PostPosted: Mon Jan 08, 2007 6:56 pm    Post subject: Reply with quote

The stock Chevy 12 bolt is stronger than the stock (as found in the bone-yard) Ford 9 inch. The only 9 inch rear that can handle more torque than a 12 bolt is one with an aftermarket nodular iron case, and a reinforced pinion support (generally aluminum or titanium) with bigger aftermarket axles, which all cost more than the stock 12 bolt.

You can find a 12 bolt rear with correct date code for about $500 (that is what I paid for the last one I bought ('70 date code); still sitting under my bench as a potential back-up if I break my Moser built 12 bolt). The Moser solution with a new high nickel center section, billet steel caps, 3" fully welded tubes, and Torino/Ford Large Wheel bearings; combined with a 33 spline Eaton Posi for the street or 35 spline spool is stronger than a built 9" for the same price.

That's my 2 on it. A Dana 60 is actually cheaper to buy than the 12 bolt (by about $300-$600), and it is indestructible (think of it as a 12 bolt on steroids). Neither the 12 bolt or the Dana suffers from the parasitic losses associated with the Ford 9" (which is due to the location of the pinion gear, not in the strength of the 9 inch ring gear (the 12 bolt also uses a 9" ring gear) By placing it lower on the ring gear, it engages more of the ring gear's teeth than the 12 bolt or Dana does (the bigger contact patch means more friction, which is the source of the 3% to 4% higher frictional losses with the 9").


Big Dave
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af2
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1933 Willys Coupe

PostPosted: Mon Jan 08, 2007 7:51 pm    Post subject: Reply with quote

All I have to say Is holy crap what a way to say hello tho the uninformed!!Wisdom always has my spot!!
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projekt70chevelle
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PostPosted: Thu Jan 11, 2007 2:25 pm    Post subject: Reply with quote

hrmmm u guys may be swaying my vote Laughing
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