DSS Half Shaft Install Question

[Rich D]

In the middle of installing a set of DSS half shafts and something doesn’t look right to me.

Pulled the factory drivers side shaft and lined it up with the dss shafts. The longer shaft (drivers side) DSS shaft is actually a smaller diameter than the passenger side (short side) DSS shaft. I would think the drivers side would be the larger diameter shaft.

Any ideas? Is this just a case of the stubs were assembled backwards and I can just swap them back?

Middle shaft is factory drivers side. Top and bottom are DSS.

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[Burkey]

In the middle of installing a set of DSS half shafts and something doesn’t look right to me.

Pulled the factory drivers side shaft and lined it up with the dss shafts. The longer shaft (drivers side) DSS shaft is actually a smaller diameter than the passenger side (short side) DSS shaft. I would think the drivers side would be the larger diameter shaft.

Any ideas?

The difference is that the factory shaft is hollow (foam filled).
I’ve broken every single CV in those axles at least once but the bars themselves are fine.
Don’t sweat it.
However, if the CV’s start to produce clicking sounds (or just plain break), don’t even bother with a warranty claim. Do yourself a favour and go directly to GKN/Loebro CV’s.
Also, I’d take the time to pull the M10 bolts out of the CV’s and make 100% sure they’re loctited and then torqued to spec.
From experience, that’s not always the case.

 

[Rich D]

The difference is that the factory shaft is hollow (foam filled).
I’ve broken every single CV in those axles at least once but the bars themselves are fine.
Don’t sweat it.
However, if the CV’s start to produce clicking sounds (or just plain break), don’t even bother with a warranty claim. Do yourself a favour and go directly to GKN/Loebro CV’s.
Also, I’d take the time to pull the M10 bolts out of the CV’s and make 100% sure they’re loctited and then torqued to spec.
From experience, that’s not always the case.

Thanks for the reply. I get that the factory shaft is larger but hollow. But what I was referring to was that the dss passenger shaft is larger in diameter than the dss drivers side shaft. I would think that the drivers side should be the thicker one.

Thanks for the tip on the cv. I’ll keep that in mind if I have an issue there.

 

[turnswrench]

Have you contacted DSS as well?

 

[Rich D]

Have you contacted DSS as well?

Contacted DSS first obviously, and their tech support guy just asked me to email pics, which I did. But I’m sure I won’t get a reply til Monday or later. I’d like just to get this buttoned up this weekend if possible.

 

[gixxersixxerman]

not that this should be definitive proof, but according to AM pictures, the right side is indeed bigger then the left

right side
https://www.americanmuscle.com/dss-halfshaft-800hp-rh-2015.html

left side
https://www.americanmuscle.com/dss-halfshaft-800hp-lh-2015.html

 

[Burkey]

Thanks for the reply. I get that the factory shaft is larger but hollow. But what I was referring to was that the dss passenger shaft is larger in diameter than the dss drivers side shaft. I would think that the drivers side should be the thicker one.

Thanks for the tip on the cv. I’ll keep that in mind if I have an issue there.

No worries.
I’m not sure if the bars themselves are the same length left and right but if they are, you could just swap the splined sections at the axle end from one to the other.
Seems strange to me that you have two different diameters in the first place. Mine are same (smaller) on both sides and when I queried DSS on this, they said they’d done away with the anti-wheelhop idea....
How old is this set?

 

[Rich D]

No worries.
I’m not sure if the bars themselves are the same length left and right but if they are, you could just swap the splined sections at the axle end from one to the other.
Seems strange to me that you have two different diameters in the first place. Mine are same (smaller) on both sides and when I queried DSS on this, they said they’d done away with the anti-wheelhop idea....
How old is this set?

That could be it actually. This was a set I purchased second hand, but they were just refurbished by DSS recently. It does appear their older shafts are two different diameters, and their current ones are the same size. Maybe their “anti wheel hop technology” involved making the passenger side bar thicker?

 

[Burkey]

That could be it actually. This was a set I purchased second hand, but they were just refurbished by DSS recently. It does appear their older shafts are two different diameters, and their current ones are the same size. Maybe their “anti wheel hop technology” involved making the passenger side bar thicker?

That’s correct. It’s the same strategy Ford use. I assume it gives a different frequency from one side to the other, thereby “chopping” the signal so to speak.
They may well have stuffed it up upon refurb, getting the wrong diff spline section on the wrong bar.
Hopefully they have an answer for you.

 

[Rich D]

That’s correct. It’s the same strategy Ford use. I assume it gives a different frequency from one side to the other, thereby “chopping” the signal so to speak.
They may well have stuffed it up upon refurb, getting the wrong diff spline section on the wrong bar.
Hopefully they have an answer for you.

Thanks Burkey, I appreciate the insight buddy.

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