Can you take a better picture of one of the upper joints unwrapped and also measure the lip on the upper BJ that will sit at the bottom of the upper "c"
This was part of the problem with the original Rare Parts ball joints when trying to use a Tera44 housing.
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Yes, I'm keeping an eye on them. At that price I'm not going to be the first Tera44 Ginny pig like I was for the 1st production run of the RP joints. I'll wait until someone actually installs them on Tera44 housing. Somewhere in this forum I discussed my issue with the RP joints and they were of no help at the time. They did make the threaded body longer later down the road after I already ditched the RP BJs.
Here is my older post: Can we discuss Rare Parts Ball Joints... again