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Old 03-14-2019, 09:37 PM   #1
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Ball Joint Taper

Got a 66 C10 and want to know what the taper is on these ball joints Upper and lower.

I have a 7 degree reamer and don't know if that will work for both upper and lower? Will it work for the steering joints too?
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Old 03-19-2019, 06:49 AM   #2
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Re: Ball Joint Taper

What are you trying to do? What do you need to ream?
60 to 66 Chevy and GMC window decals
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
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1965 Suburban
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Old 03-19-2019, 10:45 PM   #3
AZ 67 C10
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Re: Ball Joint Taper

I increased the taper on my spindles to accept larger tie rods (73-87) since the rest of my suspension was 73+ and my spindles were 67-70. I cant speak for all the different years and suspension components but my setup was a 7 degree taper. There's some math involved to figure the degrees of taper so don't quote me on it being 7 degrees since I could have totally done the math wrong.. In the end I took it to a machine shop since my tapered bit was chattering when I tried to do it.
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