What do I have, 4R70 or 4R100?

Asked by Teralynn May 11, 2022 at 05:02 PM about the 2001 Ford F-150 XL Extended Cab SB

Question type: General

Good Day, I have a 2001 Ford F-150 5.4 two
wheel drive automatic truck. I’ve been told by
some it takes a 4R100 tranny, and by others
it’s a 4R70. The door tag is worn and can’t be
read. How can I find out FOR SURE which
transmission is the correct one?



Thank you!

1 Answer
155,195

james answered about a year ago

There should be a tag on the transmission telling you what the transmission is. It's usually on the side of the transmission. Hope that helps! Jim

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