O/T axle help
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Postmaster
Joined: Oct 2010
Posts: 4,656
Likes: 4
From: Northern and Southern Cal
O/T axle help
Hi Guys
I have a little problem I'm working on.
I bring it up on this forum because I know there are lots smart guys here and this is where I hang the most.
I have an axle under my '61 that I'm looking to either replace, or re gear. I'll take your ideas on which.
It looks like a Dana 60 but the model number says it's an 80. However I thought 80s were full floating and this one is not.
I can't quite get all the numbers off the housing but here are the ones I can see.
It has some short *** gears in it, prolly at least 4.56ish.
Would like to get that up to 3.50/3.70ish 'cause I've been driving it on the freeway quite a bit.
I'm also going to swap out my Jeepified toploader in behind the Y block to get 4 full gears.
My question is this, first dos anyone know what this really is?
Second, is it something I should keep or just throw a 8 or 9 inch in the truck and lose this thing? Just a cruiser truck with little hp.
Thanks for your knowledge and ideas in advance.
I have a little problem I'm working on.
I bring it up on this forum because I know there are lots smart guys here and this is where I hang the most.
I have an axle under my '61 that I'm looking to either replace, or re gear. I'll take your ideas on which.
It looks like a Dana 60 but the model number says it's an 80. However I thought 80s were full floating and this one is not.
I can't quite get all the numbers off the housing but here are the ones I can see.
It has some short *** gears in it, prolly at least 4.56ish.
Would like to get that up to 3.50/3.70ish 'cause I've been driving it on the freeway quite a bit.
I'm also going to swap out my Jeepified toploader in behind the Y block to get 4 full gears.
My question is this, first dos anyone know what this really is?
Second, is it something I should keep or just throw a 8 or 9 inch in the truck and lose this thing? Just a cruiser truck with little hp.
Thanks for your knowledge and ideas in advance.
Postmaster
Joined: Nov 2011
Posts: 2,553
Likes: 10
Not too familiar with that vintage. That said, truck D60's are generally full floating also. Mine is ('78 F250).
As what to do, how healthy is the engine? A warm rebuild with a little compression, cam and 4 bbl should be fine with a 9". If its "really warm/hot" and you want to drag race, suggest a D60 or race built 9" from Moser, Strange or others. Either of the above may be easier than re-working the '61 rear.
Please consider this a "bump".
As what to do, how healthy is the engine? A warm rebuild with a little compression, cam and 4 bbl should be fine with a 9". If its "really warm/hot" and you want to drag race, suggest a D60 or race built 9" from Moser, Strange or others. Either of the above may be easier than re-working the '61 rear.
Please consider this a "bump".
Posting Guru
Joined: Feb 2009
Posts: 1,088
Likes: 4
I'm no expert on Dana axles, but I did find this page:
https://en.wikipedia.org/wiki/Dana_80
Just change the '80' to a '70' for it's page. According to the articles, the 70 has 3.5 inch axle tubes and the 80 has 4 inch tubes. That should at least help you decide if it is one of these two.
https://en.wikipedia.org/wiki/Dana_80
Just change the '80' to a '70' for it's page. According to the articles, the 70 has 3.5 inch axle tubes and the 80 has 4 inch tubes. That should at least help you decide if it is one of these two.
More Turbo
Joined: May 2007
Posts: 622
Likes: 2
From: Phoenix, AZ
My buddy has a 60 F100 and had the same rearend and we swapped it for a 9 inch out of a 63. After it was all said and done different u joint and it needed bearings it would have been cheaper to have the Dana re-geared.
But now he has a 9 inch!
But now he has a 9 inch!
Thread Starter
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Postmaster
Joined: Oct 2010
Posts: 4,656
Likes: 4
From: Northern and Southern Cal
It's just a warmed over 292 Y. So no problem with power.
I'm thinking if I found a cheap 8.8 or 9 inch, either would work.
Hah
It's got 3.25 inch tubes (aprox/tape measure)
40 inch spring perches
Yeah Im curious too about the price to re gear with the larger pinion vs just a quick swap.
I'll call and check it out.
I'm thinking if I found a cheap 8.8 or 9 inch, either would work.
I'm no expert on Dana axles, but I did find this page:
https://en.wikipedia.org/wiki/Dana_80
Just change the '80' to a '70' for it's page. According to the articles, the 70 has 3.5 inch axle tubes and the 80 has 4 inch tubes. That should at least help you decide if it is one of these two.
https://en.wikipedia.org/wiki/Dana_80
Just change the '80' to a '70' for it's page. According to the articles, the 70 has 3.5 inch axle tubes and the 80 has 4 inch tubes. That should at least help you decide if it is one of these two.
It's got 3.25 inch tubes (aprox/tape measure)
40 inch spring perches
I'll call and check it out.
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