NumbersGuy
Well-known member
- Joined
- Jan 3, 2021
- Threads
- 0
- Messages
- 101
- Reaction score
- 97
- Location
- California
- Vehicles
- 2021 Ford F150 King Ranch
The way I’ve learned to tell is if the running board stops at the rear tire, it’s a 5.5. If there’s a foot long gap between the running board and tire, it’s a 6.5.Congrats on your new truck.
I’m guessing from your photo, that’s a 5.5 box , is that correct or is it the 6.6.
That has helped me out tons once I noticed it. Hope it helps!
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