Every Common Ford F-150 10R80 Transmission Failure (Mechanic's Walkthrough)

The Ford F-150 10R80 is the most popular 10-speed transmission in America. It also has 3 common failure modes I see at the shop every single week.

This is the full mechanic walkthrough — what fails, why it fails, and what Ford updated to fix it.

00:00 The 2018 F-150 + 10R80 walkthrough
00:30 ISSUE #1 — Front pump bolts (torque-to-yield, one-time use)
01:05 ISSUE #2 — Cylinder drum splines + aluminum debris
01:30 ISSUE #3 — CDF drum (THE #1 FAILURE)
02:25 Ford's updated OEM parts
02:50 Valve body + transmission case overview

🔑 PRO TIP: When rebuilding a 10R80, ALWAYS replace the torque-to-yield bolts AND the updated CDF drum + cylinder housing — even if the originals look good. The old parts WILL fail again.

🔧 Rohnert Park Transmission — Sonoma County's transmission specialists since 1997
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📞 Call us if your F-150 is shifting weird

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