What is every part i need to replace while doing timing chain for my 06 f150 fx4

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. My first point is important: this engine has 2 timing chains - one left and one right. This is not a single chain engine, and since you asked about a timing chain, I'm quite concerned that you may not know what you're getting into here. What makes you believe the chains should be replaced? Keep in mind this is a very complex and complicated system, and if you're asking what should be replaced -- I'd recommend not doing anything with it at all and having a professional engage in the repairs. It requires special tools and following the workshop manual perfectly to ensure no damage is done to the engine. I must also ask - why are you replacing the chains? Lastly, no, I do not see a need to proactively replace a water pump or oil pump or any part not suspected to be failed. Yes, the guides and tensioners. The phasers can be replaced as needed without changing the chains - and perhaps that's a place to be looking for your concerns in the first place? I just can't help but urge you to seek help from a local shop near you who can give you better first hand advice based on your specific concerns. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.