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Unread 03-31-2008, 09:24 PM   #1
stokesj19
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Ford 9 inch vs dana 44

Which would you preffer for a back axle. I was told that a 9 inch was the equivilant to a d60.

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Unread 03-31-2008, 09:41 PM   #2
sam.b.
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prolly the ford 9 cause it would be easy to get a matching front 44 (or build a 609 up front) and the removeable 3rd member would be nice
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Unread 03-31-2008, 09:59 PM   #3
Swampwalker3
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It's somewhat close but I know more people who's destroyed a 9".. 3 times in one day.. than I do with 60s.
Also, 9"ers like to leak from axle seals. New seals leak.. Putting RTV on the flanges, still leaks.. Putting new seals and RTVing the flanges, still leak.. New seals, RTV, and flange seals and it usually still leaks. Usually the leaks occur within the same day to a few months depending on your method of a fix..

Now, I know of a couple who haven't had any problems, but you still have to deal with the press on bearings whenever the time comes, kinda fun when you don't have a press..

Personally, I'd go with a 60. They're the same price anyway. May be a bit bigger, but deffinately easier to deal with.
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Unread 03-31-2008, 10:10 PM   #4
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This is like compairing a run down apartment to a 500k house. The people who live in run down apartments are the ones who can't aforad the house.

A real question would be 9in vs D60, or D44 vs 8.8 (which has already been extensively discussed).
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Unread 03-31-2008, 10:11 PM   #5
YJ_Aaron
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9" is cheaper to upgrade to bullet proof in my opinion. However the lower pinion is kinda hard on jeeps with stock wheelbase.

Dana 60 is overkill for the great majority of people.
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Unread 03-31-2008, 10:12 PM   #6
jeeepguy
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A big consideration in a 9" vs D60 debate is pinion location.
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Unread 03-31-2008, 10:26 PM   #7
Swampwalker3
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Just realized he was comparing to a 44..

I'd get a 9".
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Unread 03-31-2008, 10:50 PM   #8
BWR
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Well, I just put this on another thread about a day ago: close to 500K on my dana ft and ford 9' on an f-150. I dread saying it-- but it went for at LEAST 200,000 miles before its first fluid change. Has seen a LOT of off road and Highway miles...not too many in city and they've held up well, but figuring the 9" in the back "runs" all the time and the front one only off road--> I think I'd say a 9" hands down.
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Unread 04-01-2008, 08:13 AM   #9
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I really think a 9" as a builder axle. Can it be way stronger than a D44, of course. Can it be weaker in some cases, yes!. Really it depends on which ford 9" you get. If you have a non-nodular iron 3rd members, you can blow the third member apart with as little as 31" tires and lockers. It can be an easy fix though with just picking the right 9" from the bone yard. And really the stock 31" spline really aren't the strongest either. The stamped steel housing really can flex alot.

With that being said, I would love to have a trussed 9" stuffed with a truehi9 third member, a 35" spline locker, and 35 spline alloys.
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Unread 04-01-2008, 08:27 AM   #10
1 ton yj
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9" all the way. Can be built to be as strong as a 60.

I'd build mine shaved, braced top & back and built with a Moser 3rd, 35 spl Detroit Locker, D70 tubes, spindles 35 spl shafts and FF hubs.
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Unread 04-01-2008, 10:01 AM   #11
Hokie_YJ
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I know a guy who just built one just like that. Except he used sterling spindles and hubs. It's bad!
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Unread 04-01-2008, 11:09 AM   #12
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I'd use the D70 stuff because I can get a D70 for about what I could sell the gears on ebay for, and because the splines match those of a 9" detroit.

Got any pics of how your friend build his? What did he use to align the housing?

The parts I can come up with easily, I just don't have a lathe to make the alignment tools with.
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Unread 04-01-2008, 11:58 AM   #13
OldFatGuy
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I'd get the 9-inch just because it's so much easier to set up ring and pinion gears. Also, the steel housing makes it much more convenient to weld on trusses, etc.
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Unread 04-01-2008, 01:41 PM   #14
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Quote:
Originally Posted by 1 ton yj View Post
9" all the way. Can be built to be as strong as a 60. .
can be built stronger. 60s are not the end-all axle the internet makes them out to be.
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Unread 04-01-2008, 01:53 PM   #15
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Quote:
Originally Posted by 1 ton yj View Post
I'd use the D70 stuff because I can get a D70 for about what I could sell the gears on ebay for, and because the splines match those of a 9" detroit.

Got any pics of how your friend build his? What did he use to align the housing?

The parts I can come up with easily, I just don't have a lathe to make the alignment tools with.
He just used the sterling because that's what he had laying around. I don't have any pics, but i can ask him about what he did to align the housing.
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