Here's the tapered reamer I used when building the T front end. It was stolen from a storage facility I was renting here in Hemet, along with most of my other hand tools..... 7 degrees equates to 1 1/2" per foot of taper. Make sure of the taper used on your ballstuds before purchasing a reamer.
Speedway Tapered Ball Joint Reamer, 7 Degree

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