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    What oil are you using

    @OP , I wouldn’t try different viscosities or deviate from engine design 5w-30. I think of oil delivery velocity and orifice sizing. Thicker oil may sound better on surfaces, but delivering the oil to that surface is a different animal. Pennzoil Ultra Platinum and Amsoil signature series seem...
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    Harsh downshift after rebuild

    Ford should have provided a 2 year warranty with that transmission rebuild. I would start there.
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    Ford oil change mileage.

    Research amsoil and lab results. Penzoil makes something really good, too! Sorry, I’ve heard bad things about Mobil1. I use amsoil signature series. 7500 - 8500 mile interval. I plan on just changing the oil filter at ~8000 miles and taking it to 15k with lab testing at the end of it for...
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    What kind of deals is everyone getting on leftover 2024s?

    Make sure you call and check the price first. I used this method, drove 1 hour to the dealership, they loaned out the vehicle and the price was not correct. But also, the same wrong price was on a local ad listing website, too! I called them out on it and they doubled down on me saying it’s the...
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    CCD at 82000 miles....

    Looks like a decent price on RockAuto.com Motorcraft description of CCD strut: Motorcraft Shock Absorbers undergo a series of demanding tests to ensure they meet strict Ford OE quality, performance and durability standards that includes Key Life testing to the equivalent of 10-years/150,000...
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    New owner with questions

    @LanceExp2025 I don’t feel as though the smoothness was sacrificed post-sway bar installation. I have not noticed much difference in the smoothness and neither has my wife. But, in all fairness, we’re used to driving the F150. I can confirm now the grooving in the freeway around here has a...
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    New owner with questions

    Update: installed rear Hellwig sway bar a few days ago. It handles better on the corners and in canyons. I feel more confident when driving around turns. Not night and day for me, though. It did not correct the floating feeling. Does anyone here live in Utah county or Salt Lake County? I15 has...
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    Transmission Rebuild (Redesigned Parts) - Experiences

    Exactly the same as @Ugh_J rebuild #1 on my 2019 F150. Seemed better after it was done until I purchased this 2021 Expedition with 13k miles on it. The comparison is nuts! The expedition is buttery smooth while the F150 is a bit jerky when cold. You get a 2 year warranty, unlimited miles with...
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    New owner with questions

    @LanceExp2025 Thank you for your input. The Hellwig online instructions say to replace the front sway bar bushings too. I haven’t received the package yet to see if they included those bushings with the kit. If the rear sway bar reduces the issue, we’re going to buy the front kit as well...
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    New owner with questions

    @Fastcar I understood. It’s a good approach. Thank you!
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    Advice on Towing 25ft RV with 2021 Ford Expedition Max Limited 2x4 + Transmission Cooler Suggestions

    Search the internet “2021 Ford Expedition Towing Selector” brochure. It will explain everything you need to know. Read it thoroughly. It’s really good info and a great start. I would look into pulling a factory transmission cooler from a wrecking yard or buy one from Ford parts if you really...
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    New owner with questions

    I’ll check back in once the sway bar is installed and tested. I’m going to take it in to Ford and see what my options are for the transmission. Thanks everyone for your input! I really appreciate it!
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    New owner with questions

    I got 22” factory rims and just ordered the rear Hellwig sway bar. Everything about this Expedition is factory with 13,500 miles on it. Essentially, there are no obvious defects, tires are inflated according to door jamb placard, there have been no accidents to the vehicle, either.
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    New owner with questions

    @Ugh_J Floating: not bonded to the ground, a feeling of boating rather than driving. Top-heavy feeling compared to car and truck. I think it’s just something my wife isn’t used to. It bugs me a little, but not that bad. Sorry about your luck with the transmission. 2 points for extended...
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    New owner with questions

    I know who you are talking about and would love to take it to them, but I live in Utah. I wonder if they would know if I could save the trans from failure? Ford replaced my trans cooler and “sun gear 3” with the CDF drum. I’m not sure about that sun gear. I haven’t looked that one up. The...
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    New owner with questions

    @bb37 I will replace the rear sway bar first, then try different rims. Wife will not be happy about that. I do my own transmission oil and filter replacement. I go all out with AMSOIL ULV 100% synthetic oil. I will go with an extended warranty before the 5yr is up. My truck exhibited...
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    New owner with questions

    @Hellwig good, cause I just bought the rear sway bar. I hope you’re right. It does make sense. No need for the front? Could I at least do urethane bushings? If so, what size and where can I get them?
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    New owner with questions

    Thank you. This was my next move. A little concerned though, your name is “Hellwig”. Not sure if you are soliciting your product or recommending a fix to help this issue or both. lol All, also noteworthy, during the same stretch of freeway and the same speed, engaging Sport mode reduces this...
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    New owner with questions

    No. But now I wonder if Ford makes a 2wd platinum trim?
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    New owner with questions

    Hello, me and my wife just bought a 2021 Platinum Max with 13,500 miles on it. It is immaculate and well taken care of. We saw the mileage and jumped on it. We love it but have some concerns. 1. At 80mph down the freeway, the vehicle seems to float too much. It is equipped with CCD. It exhibits...

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