Opinions on D70 closed knuckle front axle

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KnockingDiesel

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TJ
Truck Year
1973
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K10
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350
Hello all,

I’m currently looking at 74 three-quarter ton square body that had a IH Dana 70 closed knuckle axle swapped in front. I know absolutely nothing about them after a little research it seems that they’re not really desirable and not much aftermarket for them if any. What are your opinions on it? I just found out that Zach existed today after looking at the truck, so any comments, concerns, information will be helpful thank you.

Also, what would one be worth?
 

RanchWelder

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Dud.
They are prone to leaking.
When they get water into the axle bearing races, the race rusts and spins inside the tubing and cannot be rebuilt, without cutting and refabricating the tubes.
Had one given to me and had it sent to the bone yard, after researching all the threads warning me not to build it.

If the short side Axle Constant Velocity joint goes bad, (it looks like a U-Joint), it ruptures the case ends and the seals and spins the races too.

The lack of aftermarket support tells you all you need to know.

No idea what you are speaking about with your last sentence.
 
Last edited:

PrairieDrifter

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Yep. Meh.
 

KnockingDiesel

Full Access Member
Joined
Dec 7, 2016
Posts
135
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252
Location
New Mexico
First Name
TJ
Truck Year
1973
Truck Model
K10
Engine Size
350
Dud.
They are prone to leaking.
When they get water into the axle bearing races, the race rusts and spins inside the tubing and cannot be rebuilt, without cutting and refabricating the tubes.
Had one given to me and had it sent to the bone yard, after researching all the threads warning me not to build it.

If the short side Axle Constant Velocity joint goes bad, (it looks like a U-Joint), it ruptures the case ends and the seals and spins the races too.

The lack of aftermarket support tells you all you need to know.

No idea what you are speaking about with your last sentence.
Thank you for the reply.

I was wondering if there was any value to it but you answered my question when you said you sent one to the scrap yard.
 

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