Is this forged?

Mighty

Greasemonkey
Oct 22, 2022
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I paid for a forged Dana pinion yoke for my 9 inch. I got a box from a different company full of Dana u joints/slip yoke/weld yokes all marked spicer and in dana boxes for my driveshaft. This one came to me in a plastic bag in a normal cardboard box and it’s not marked spicer anywhere. What say the hive?
 

ck80

Moderator
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Feb 18, 2014
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I can only offer general cast vs forged tell-tales...

A cast part often shows a crisp line where the mold was separated while forged is usually a bit more muddled, and, a forged steel piece normally has a crisper clearer ring when tapped while cast is more deadened, although, the difference isn't exactly night and day. But if you run a similar ring test on a bunch of cast parts vs a bunch of the same forged pieces you may be able to tell the difference depending on your 'ear' for pitch recognition.

Really, I'd be concerned why parts I paid for weren't stamped as coming from the manufacturer I paid for regardless.

Too much Chinese garbage amd knockoff stuff these days for me to go down the unknown origin road
 

Mighty

Greasemonkey
Oct 22, 2022
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That’s mostly what I’m concerned about. I’m pretty sure all of the other dana parts I’ve ever used were marked spicer I feel like and from the picture on the website I ordered it from, the image they used is marked spicer
 

xylorex

Master Mechanic
Aug 2, 2018
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Looks cast to me. I relate it to pipe fittings.

Malleable iron, cast iron, cast brass, cast bronze fittings are all "cast" and have that rough finish on the outside like your picture. All forged steel fittings have a smooth finish. Forged material is much more dense
 
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Mighty

Greasemonkey
Oct 22, 2022
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That’s the first thing I thought when I looked at it was cast. I hopped on the internet machine and it seems like most of the Dana stuff is smooth and they mention something about a black finish. And they’re all marked spicer. I guess I’ll call the company I ordered it from tomorrow…
 
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Built6spdMCSS

Geezer
Jun 15, 2012
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Looks cast to me. I relate it to pipe fittings.

Malleable iron, cast iron, cast brass, cast bronze fittings are all "cast" and have that rough finish on the outside like your picture. All forged steel fittings have a smooth finish. Forged material is much more dense
How much hammer forged stuff have you seen? That is definitely not cast.
 

ck80

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Feb 18, 2014
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That’s the first thing I thought when I looked at it was cast. I hopped on the internet machine and it seems like most of the Dana stuff is smooth and they mention something about a black finish. And they’re all marked spicer. I guess I’ll call the company I ordered it from tomorrow…
Point 1 is I can't recall seeing genuine spicer parts that weren't marked as theirs, and, Point 2 is that Chinese companies release products all the time where they will grade a metal to be a certain thing, but, their manufacturing methods yield an inferior product to western counterparts that bear the same grading.

Just call. Maybe even call a different company first.
 
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78Delta88

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May 23, 2022
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Last night just first look, it looks cast. I see sand marks and mold imperfection.

The caveat to this is I worked for the company late 2000 that was making the aluminum knuckles for the Pontiac Aztec. Those were a powered metal forging and even on those pieces had a similar look in certain spots, yet no sand was ever in use. Dies were coated with heavy application of graphite mold release and would cause roughness in the original foundry release prior to finishing.

Did some research on this and pics attached.

What's interesting is on the items known as cast steel do not look much different than some that are stated as being forged. If you notice the forgings, those are smooth in fit and finish while none of the cast units are.

Pic 1. Cast Steel
Screenshot_20230628-225327.png


Pic 2. Forged
Screenshot_20230628-225848.png


Pic 3. Cast marketed as forged but notice the air bubbles...
Screenshot_20230628-223728.png


Pic 4. Forged marketed as forged...
Screenshot_20230628-223700.png


Quite frankly I'm not sure what you have. It looks cast to me and then possibly finished by a forging operation to set the spline.

Things that make you go hmmmm....
 

Mighty

Greasemonkey
Oct 22, 2022
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Here’s my other order of driveshaft parts. None of these are forged. I just ordered the forged dana pinion yoke because it was was like $19 more than a non forged one so I figured what the heck.
 

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