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Old 06-04-2016, 04:20 PM   #2
junksaver
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Join Date: Mar 2005
Location: Durham NC
Posts: 216
Re: leaf spring rears2x4 and 4x4, interchange 3/4 tons

I'm going to assume your C20 is not a longhorn. If this is true, the springs and rear axle will not directly bolt in.
C20 has 2 1/4" wide springs
K20 has 2 1/2" wide springs
Spring perches are spaced farther apart on the 2wd vs 4wd
U joints I think are the same but I'm not 100% sure. You could check that thru a parts store or maybe someone else will chime in.
You can swap the rearend if you move the spring perches.

Now. If your C20 is a longhorn it should be a direct swap.
Hope this helps.
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