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Old 10-15-2010, 01:57 PM   #1
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Dana 60... 30 spline vs. 35 spline?

Hello all. I am in the process of swapping a D60 into the front of my 1988 E350.
It is from a 1979 F250.
The D60 is a 30 spline axle. I am curious, for those of you with the D60's up front if you have the 30 or 35 spline? Should I upgrade to the 35 spline? And if so any recommendations?
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Old 10-15-2010, 03:37 PM   #2
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Re: Dana 60... 30 spline vs. 35 spline?

Quote:
Originally Posted by blupaddler
Hello all. I am in the process of swapping a D60 into the front of my 1988 E350.
It is from a 1979 F250.
The D60 is a 30 spline axle. I am curious, for those of you with the D60's up front if you have the 30 or 35 spline? Should I upgrade to the 35 spline? And if so any recommendations?
For the BOM tags, I have a 35 front and back. Full Floater in rear.

Don't know if you should upgrade, I guess it depends on what your going to do with it..

I did upgrade my diff ratio from 3.54 to 4.10 and put in lockers up front, Warn premium hubs, all done by Unitrax in Anaheim, Ca; thumbs up.
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Old 10-15-2010, 05:30 PM   #3
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Re: Dana 60... 30 spline vs. 35 spline?

On the front axle, I'll bet you break something else before you reach the limits of a 30 spline axle. That would take alot of money (axles, labor, differential, bearings) for a fairly small gain in strength.

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Old 10-15-2010, 09:36 PM   #4
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Re: Dana 60... 30 spline vs. 35 spline?

I have a 30 spline out of a F550 under mine. As said I will break something else before the outer axle. All inners were the same.
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Old 10-17-2010, 09:24 AM   #5
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Re: Dana 60... 30 spline vs. 35 spline?

Thanks!

Most of the kits seem to get pretty pricey.
I think I will just keep the 30 spline for now. The van should only be seeing washboard roads, sand, and light rock usage.
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Old 10-18-2010, 05:27 PM   #6
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Re: Dana 60... 30 spline vs. 35 spline?

Agreed, you'll have to try hard to break the 30 spline.

I have 35 spline shafts just to be sure
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Old 10-18-2010, 11:56 PM   #7
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Re: Dana 60... 30 spline vs. 35 spline?

It's dirt cheap to upgrade to 35 spline. All you need are the dana 35 spline outers( no need to go Cro-mo because stock 35's are stought. Then you need 35 spline hubs. If you need hubs and U-joint's anyway then for 70 bucks a piece you can put in the 35 spline outers. And yes the 30 spine shafts break easy if you have a front locker.
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Old 10-19-2010, 06:01 PM   #8
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Re: Dana 60... 30 spline vs. 35 spline?

Quote:
Originally Posted by Stumpalump
It's dirt cheap to upgrade to 35 spline. All you need are the dana 35 spline outers( no need to go Cro-mo because stock 35's are stought. Then you need 35 spline hubs. If you need hubs and U-joint's anyway then for 70 bucks a piece you can put in the 35 spline outers. And yes the 30 spine shafts break easy if you have a front locker.
Any websites/links/resources where to find them? The "kits" I have found all run $600+

Also I am not planning on running a front locker (at this time), and only 33"-34" tires. Maybe 35", but probably not...
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Old 10-19-2010, 11:15 PM   #9
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Re: Dana 60... 30 spline vs. 35 spline?

These are cheap and cr-mo: http://broncograveyard.com/bronco/i-117 ... pline.html

hubs aint cheap: http://extremeaxlesales.com/warnpremium ... pline.aspx

Only use dana spicer u-joints unless you jump to those really expensive ones :
http://broncograveyard.com/bronco/i-117 ... joint.html

Call this place for the best price on all this stuff: http://www.performanceoffroadcenter.com/storeinfo.html
He probably has a kit and will haggle if you ask.
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Old 10-21-2010, 01:45 PM   #10
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Re: Dana 60... 30 spline vs. 35 spline?

Thanks!
I will check those out.
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