It's a single piece - I think the discoloration is leftover from the heat treat process. They likely heat treat it, then finish grind the bearing race.
With that said, I'm not considering reproducing a part similar to this. The integrated bearing race is a no go for me. I think replacing the...
Got it all apart -
It is the end of the hub that's rolled over to capture the bearings and probably provide some preload:
Into the press:
And all apart:
Got the hub in. These are pretty fun. It looks like the hubs are inserted into the bearing housing, then I'm not entirely sure what the piece is on the backside (towards interior of car). Massive pressed plug or the hub itself is formed to capture the bearings. So to pull the hub apart, I'll...
What's your car pull for lateral G's, and what rear tire size are you running, and what's the weight and weight distro of the car right now? We need to math out the force the hub is seeing.
Yeah, I wanted to see a good one just to make sure it's manufacturable in my CNC - it is.
I can't tell from the broken hub pic of where exactly the break is occurring -
But it looks like that's just a cast steel piece that's been finish machined in a couple spots. I think making it 1-piece...
That's within reason to make, especially since an axle doesn't go through these (no broaching splines). If there's a small market for them, I'm in. @gotovato do you have a good one handy?
When the slave goes bad, it will leak fluid. I think the slave is OK in this case.
The master, though, I think you're headed in the right direction @syzygy. I've had several go "bad" where the internal O-ring on the piston gets chewed up over time and fluid gets past. It's all internal to...
If you still have the LSD/Ring gear in it, you can wedge it in place and spin off the pinion nut.
If you don't have the LSD/Ring gear in it, there's no good way to hold it without the SST. If you don't care about the pinion...the jam something in there lol.