2020 F350 6.7 with 10-Speed Transmission Hard Shifting

Hello guys, I would like some guidance. This truck, which has 68700 miles on it, just started shifting poorly and bucking forward violently when I put it in gear. When I took the plug out, there was no dip stick in the slot when I had reached underneath the transmission to check the oil. When I called Ford, they informed me that the oil is lifetime and there is no dip stick.

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There is an oil leveling plug on the driver’s side near the back of the transmission. With the engine running, use a 10mm hex to remove the plug. If fluid comes out, it’s full, if not, that is where you add more to top it off. However, I doubt that will solve the issue. It’s likely the input shaft seals, and there’s a TSB for that exact problem. Source, 8-year Senior Master Ford Tech with extensive experience rebuilding these 10-speed transmissions.

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I am grateful for your assistance, brother.

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Not an issue. I could get you fixed if you are in the Triangle region of North Carolina. If not, any dealer with a capable trans tech ought to be able to.

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My Ford dealer’s transmission tech won’t allow it go past 60,000.

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Lifetime oil in a transmission? I wouldn’t trust that. I would take it to a reliable dealer and let them sort it out.

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I have heard that the 6 speed utilizes the same dipstick, does anyone know where I can purchase one?

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It lasts the lifetime of the warranty. :100:

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