Seller notes

This has been a very tough part to find as GM discontiued it in 1999, and it also has not been available in most auto part stores. 4 prong TCS transmission spark control relay vacuum advance delay. GM part number 3961573 Please Note: Per eBay's shipping policy, we can only ship to the mailing address that is supplied at checkout. You will not be able to change shipping address after purchase. We ship via USPS, UPS and Speedy so please make sure the address supplied will accept shipping from any ...

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