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I have a Vette racer buddy,(67 Big Block)who tells me his drive-train guy can modify my stock half-shafts on my GTS to handle up to 1000HP for a couple hundred dollars. Since the shop is local , I was thinking about giving them a try. Does everybody buy Unitrax , BTR , ..ect shafts because they are better , or would the stock work with bigger tubes and stronger joints?
