The knife switch works well on my V8 with no apparent strain on the starter. I gave it 4 starts because the plastic piece tying the bronze parts together is a bit flimsy. A fiberglass plate piece to replace the plastic plate would be a much stronger design and more stable and I would be willing to pay a bit more for a better product. The bronze parts and copper (coated?) switch knife are top quality. I treat it gently because it feels fragile and so far it is working good though I do carry a 10mm wrench in my truck just in case it need to remove the switch if it breaks because I like to be prepared.I would recommend this over so of the other disconnects I have seen on Ebay.
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