Will the spindles and this kit Classic Performance 6370SWBK-6D work with this upper control arm? I have already purchased this control arm and would like to get this kit if it would work.

For kit 6370SWBK-6D you would want to use upper control arm 6372TCA-UKB903. Kit 6370SWBK-6D includes ball joints and steering linkage for a 1973-1987 chevy C10 so you would have an extra set of ball joints on your hands. Kit 6370SWBK-6OE works with the stock ball joints or upper control arm part 6372TCA-UKB480.
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