Re: 72 K10 SB 1/2 or 3/4 Axles?
Stock 3/4T springs are stiffer & heavier than 1/2T springs, but have little to no lift. I'm sure you have lift springs up front. Rear could be springs or blocks, easy to tell by looking. Blocks are cheaper so they get used a lot.
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- Mike -
1972 K20 LWB 350/350/205
RIP El Jay
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