Quote:
Originally Posted by byndbad914
as the titles states, I am hoping someone knows the taper on the ball joints for C6s...
I have uppers in the used spindles I got but they don't measure to what I consider a "normal" GM taper. The lower reamed taper in the spindle measures out the same but I am hoping to confirm the angle since, again, it is not what I expected.
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I just went to the shop and picked up a new C6 spindle and a low friction ball joint that Howe provided to me for the lower end. The factory ball joint is installed in the upper end. I measured them with a digital caliper (not a micrometer which would probably be more accurate). The upper comes out 2 inch. per foot taper consistently, a number I've heard several times on another forum. The Howe technician provided me with a lower ball joint stud that fits correctly -- part number 224240 which shows to have a 2 inch. per foot taper. I just called the Howe tech and he confirmed that (by the way, he said "Corvette" as the application without me mentioning it, so it kind-of sounded Corvette specific). Measuring the tapered hole in the spindle I get 1.92 inch. per foot taper, but my caliper may not be that accurate on inside diameters. As a side note, I was originally told by a manufacturer that the GM C6 taper was "proprietary". When I measure the Howe stud I actually get 1.84 Inch per foot. Hope this helps. By the way, Howe has an excellent stud taper/fitment chart.
Pappy