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Is your truck a 4th or 5th gen ,4th gens can usually get away with resurfacing the manifold and new bolts with Remflex 6022 gaskets,5th gen's do have a habit of cracking the manifolds though.My 2019 is doing this, I believe it's a cracked manifold. under warranty still with 72k miles. Just....manifolds are on backorder and I can't afford long tubes and a PCM/Tuner right now.