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Dana 60 vs 9" Ford brute strength?

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Dana 60 vs 9" Ford brute strength?

Postby transtalon » Mon Sep 19, 2011 8:33 pm

Which rearend is stronger, A Dana 60 or a 9" Ford? Anyone have any explanation or experience with both. Either with Posi or spool setup.
Thanks in advance.
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Re: Dana 60 vs 9" Ford brute strength?

Postby johnretired » Tue Sep 20, 2011 6:42 am

You are starting a long played argument with that question!!!

I'm going to jump in.
In STOCK form, the DANA 60 is far stronger.
With aftermarket parts, it depends.

The 9" has a wider range of gear ratio selections and this is why so many use it.
If the ratio, or ratio's that you want or may use are available with the Dana, you will be money ahead to use it.
Next is the argument of weight. The dana is 9 to maybe 15 lbs heavier. But it costs less HP to turn it because of pinion placement. This is awash between weight and friction.

To make the 9" stonger than the Dana you may end up spending twice the money.
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Re: Dana 60 vs 9" Ford brute strength?

Postby rskrause » Thu Sep 22, 2011 7:23 pm

Above post is also as I understand it, FWIW. With all the parts available for a 9" it's hard to do an apples to apples comparison, WHAT 9" vs. WHAT Dana 60?

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Re: Dana 60 vs 9" Ford brute strength?

Postby transtalon » Thu Sep 22, 2011 9:10 pm

If you put a spool on both and all aftermarket for the 9" Ford, the dana will have a MW billet steel caps. Will the 9" Ford be superior or
as equal as a Dana? Thanks.
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Re: Dana 60 vs 9" Ford brute strength?

Postby af2 » Thu Sep 22, 2011 9:23 pm

I can only say that we run a 60 with the billet cap on the left side. On the AA/supercharged we have on average 2+ years on a gear set. The 9's are lucky to get a season. We are talking built 9's.

Let the shooting begin. :lol:
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Re: Dana 60 vs 9" Ford brute strength?

Postby transtalon » Fri Sep 23, 2011 7:38 am

This is what my buddy told me. He know this guy Chris Karmansinni ( spelling issue ) who run a 7 second wagon with blower. He ran nothing but a Dana with the stock ring and pinion and just replacing it every season. He said nothing will survive in his ride but a Dana due to weighing more than 3600 lbs. He also said that the posi unit spider gear on the Dana is so massive
that it makes everbody else smaller. Any more good and bad info will be appreciated.
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Re: Dana 60 vs 9" Ford brute strength?

Postby Supershafts » Sat Sep 24, 2011 8:27 am

transtalon wrote:If you put a spool on both and all aftermarket for the 9" Ford, the dana will have a MW billet steel caps. Will the 9" Ford be superior or
as equal as a Dana? Thanks.



No. . . .


That's the easy answer
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Re: Dana 60 vs 9" Ford brute strength?

Postby transtalon » Sat Sep 24, 2011 8:39 am

One shop in IL showed the difference in the ring and pinion gear between the two. The Ford 9 looks to be more wider and beefier gear tooth than the Dana.
That is the reason why the 9 " is a stronger rearend. This is the reason why I am asking for the ones that had both or had an experience on both rearend. Thanks.
So you are saying the Dana 60 is the stronger rear?
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Re: Dana 60 vs 9" Ford brute strength?

Postby Supershafts » Sat Sep 24, 2011 9:45 am

transtalon wrote:One shop in IL showed the difference in the ring and pinion gear between the two. The Ford 9 looks to be more wider and beefier gear tooth than the Dana.
That is the reason why the 9 " is a stronger rearend. This is the reason why I am asking for the ones that had both or had an experience on both rearend. Thanks.
So you are saying the Dana 60 is the stronger rear?



It's not stronger, and once you get to aftermarket 9" the rings and pinions are cut differently then the factory version, Either way the 9" is not stronger .. .

if i show you a 5.88 ring vs a 3.08 ring all that is showing you is the thickness needed to make the pinion smaller to spin faster, increasing the car/motors ability to accel quicker....

That was stupid to compare, i'd be leery of that shop .

Im going to have to get specific..... The 9' is popular ONLY because if you road race or SS race and want to go from a 3.70 to a 3.80 guess what, you can, if you want to go from a 4.20 to 4.29 you can, it just has every imaginable gear ratio possible.... I road race and drag race and i don't need that many gear choices, of all my customers a handful have more than 1 set up for the 9" and the 8.75. Only 2 really change them out for the other ratios they have.

That is what makes it popular, every 9" i do i never see the customer back for any of that need for all that gearing. . .


Now, the 9" has a unit bearing like design on the pinion, which sucks, and it NEEDS that 3rd bearing, it is NOT there as an added extra benefit, it MUST ALWAYS be there, and when that 3rd bearing fails, you need a New Gear case, gears, Driveshaft and trans...

When, if you break a Dana, you need gears. . . .

The 9" has a extremely low pinion that when used with a stock factory gear has a huge area of contact, and that also makes even more drag, but that is where it's strength is and thats it.
Aftermarket does not cut gears the same way and that loses some of that contact area, but it still has the loss, and extreme pressure on that pinion....

The pinion is short and not as strong as the Dana 60, the Dana has a bearing spread that holds the pinion gear better and more stable.
The dana is 9.75 in diameter and the 9 is 9, the dana also has larger internals as for spiders and clutches, but for racing and a spool that doesn't matter

Here watch what happens when a 9" screws up, vs a Dana

http://www.youtube.com/watch?v=xsnxKkFK ... h_response

http://www.youtube.com/watch?v=k6CnpWOG ... ure=relmfu

http://www.youtube.com/watch?v=jvZCpN7VASY

I have never ever seen a Dana 30 thru 80 send a pinion gear out of the case, i have seen the 9" do it, and send the carrier out and also just break.
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Re: Dana 60 vs 9" Ford brute strength?

Postby transtalon » Sat Sep 24, 2011 9:54 am

Thanks Supershaft for a great explanation on both rearend. This is the kind of answer I wanted, I didn't post this question to start a war between
the two. I just wanted a valuable information so that I can share it with fellow car guys just like me. :D
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Re: Dana 60 vs 9" Ford brute strength?

Postby Supershafts » Sat Sep 24, 2011 3:03 pm

not a problem, no war starting, just feeling lazy, stressed and beat up, was hoping not to type to much. . . .
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Re: Dana 60 vs 9" Ford brute strength?

Postby af2 » Mon Sep 26, 2011 4:33 pm

Supershafts wrote:not a problem, no war starting, just feeling lazy, stressed and beat up, was hoping not to type to much. . . .


You Supershafts have made an excellent point I could have never made even knowing the difference!
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Re: Dana 60 vs 9" Ford brute strength?

Postby transtalon » Mon Sep 26, 2011 5:47 pm

I spoke with another drivetrain specialists for some Dana posi this morning. He said for a street and strip rearend that will live a
Dana 60 is king. A nine inch can be made strong but it will have to be a race rearend spool and all the upgrades to be close as a
Dana. This is due to massive parts that is stock with a Dana, drawback was weight but it is an efficient rearend compare to the
friction that a nine inch produce fro the ring and pinion. So it is just basically the weight is a big drawback on the Dana. Thanks
guys for your input.
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Re: Dana 60 vs 9" Ford brute strength?

Postby Jeff Lee » Mon Sep 26, 2011 11:57 pm

By the time you replace the stock axle tubes with CM axle tubes and the lite-weight spool is added, a Dana 60's weight is not even a consideration. I've got Dana gears with hundreds of runs on them and one set (4.88's) has been in my car and an A/S Max Wedge car before mine and they still look perfect. I use all MW parts.
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Re: Dana 60 vs 9" Ford brute strength?

Postby Supershafts » Wed Sep 28, 2011 7:41 pm

Someone has made a drop out dana 60, i'll find the companies name and get it on here
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