It's a CVJ reman. Honestly, I have no idea what that big o-ring does. It came with a tag that pointed out the little clear straw breather tube you can barely see in your zoom in image. They ship with the breather tube in place and instruct you to remove it once installed on the truck. It appears to me that there is a factory black rubber boot under the orange silicon boot, or at least a portion of the wide rim that forms to the 6-sided design of the inner bell.Good wrapping job on the axle- I like the cane ends- wished they shipped that way from mr. T.
More details on the axle you pictured: Is that a RCV joint, or CVJ reman with the upgraded neoprene boot?
But I'm especially curious about this O-ring you have in the inner boot: does that help with stopping chaff?
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