I have a XX1 rear derailleur that has seen better days. Its pretty new, less than 6 months old at this point. I will be replacing it with a GX derailleur strictly to save money. How many of the parts are interchangeable between the two? I would think the jockey wheels can be switched over to take advantage of the better bearings, but how about the other parts?

I was wondering if I could use the cage/clutch assembly from the GX and mount it to the XX1?

I would remove the cage/clutch assembly at the red arrows and try to switch it over? That way I could use the nicer machined portion of the XX1 with the cage/clutch of the GX.

In the pics they look like they are different, but not sure if thats because the pics are not to scale.

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