So I'm in the midst of "refreshing" a 4.10 LSD. I disassembled the entire thing only to find bits of metal everywhere, mostly inside the... LSD portion of the diff. I believe the bits of metal are what used to be teeth on the clutch discs.
And here is what one of the clutches looks like. The other looks very similar.
There appears to be damage to the dog ears, but I had intended on replacing them anyway. What worries me is what the surface of the other surface looks like. It doesn't appear to be gouged, but it does appear to have had metal melted onto it. I can't describe it any other way.
It is certainly raised, but appears to be a part of the surface now. Attempts at scraping it off with a metal paint scraper have failed.
Has anyone seen damage like this before? I'm wondering if I took this to a machine shop whether they could remove what I hope is just clutch material from the surface. I realize that the thickness of this thing down to the tenth of a millimeter is important, so the actual surface can't probably be planed down at all. Or perhaps this thing is toast, and with it the diff since I don't think this is a replaceable part?
I do have a 3.73 LSD in the car that I was hoping to swap out and pass on to the community. However, I could rip it apart as well and pull these parts out of it, and between the two of them have one good diff. Seems like a waste though.
Higher quality images in the album here.
What does the R3V community think?
And here is what one of the clutches looks like. The other looks very similar.
There appears to be damage to the dog ears, but I had intended on replacing them anyway. What worries me is what the surface of the other surface looks like. It doesn't appear to be gouged, but it does appear to have had metal melted onto it. I can't describe it any other way.
It is certainly raised, but appears to be a part of the surface now. Attempts at scraping it off with a metal paint scraper have failed.
Has anyone seen damage like this before? I'm wondering if I took this to a machine shop whether they could remove what I hope is just clutch material from the surface. I realize that the thickness of this thing down to the tenth of a millimeter is important, so the actual surface can't probably be planed down at all. Or perhaps this thing is toast, and with it the diff since I don't think this is a replaceable part?
I do have a 3.73 LSD in the car that I was hoping to swap out and pass on to the community. However, I could rip it apart as well and pull these parts out of it, and between the two of them have one good diff. Seems like a waste though.
Higher quality images in the album here.
What does the R3V community think?
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