My 63 C10 has 3” lowering shocks in the rear. The front was lowered with 2.5” disc brake drop spindles, so it has the original springs up front. I bought an adjustable rear tracking arm from CPP and have new shocks. I have not had any issues. Just mentioning what I have since it’s similar to yours.

1965 Chevy C10 Shortbed 1/2-Ton Stepside
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