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Old Jun 4, 2017 | 04:54 PM
  #1  
Twofish's Avatar
Twofish
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5th Wheeling
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Transmission Identification

I hope this question isn't something that comes up a lot. I did do a search but my head started to hurt as I read through a bunch of threads that did not answer my particular question.

I'm just trying to figure out which transmission I have in my truck.

2001 F150 XL
Regular cab
6' bed
RWD
4.2 V6

The gear indicator looks like this: P R N D 2 1 and it has an overdrive or tow/haul button on the end of the shifter.

4R70W or 4R100???

Thank you.
 
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Old Jun 4, 2017 | 06:59 PM
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bill06447
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From: Marlborough, CT
4R70W has transmission code U on the door pillar tag.

Bill
 
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Old Jun 4, 2017 | 07:50 PM
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Mark Kovalsky
Frmr Ford Trans Engr
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The 4R100 was never mated to the 4.2L. It is a 4R70W.
 
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Old Jun 4, 2017 | 11:34 PM
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Twofish
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Thank you.

Ok, here is a question that I know is impossible to answer but I'll ask anyway.

What is the expected lifespan of this transmission?

I know. Hard to answer when you don't know what it has been through but here's a little bit of info that might help.
This truck has a little more than 165,000 miles on it.
I've had the truck since it had about 70k on it. Since then, I have dropped the pan, change filter, refill fluid about every 20k miles. The reason I didn't remember what transmission I had was because this truck sat in my driveway for the past 2+ years while I drove my '15 F250.
I used to tow a boat with it that weighed about 1000 pounds.
I always wait for it to come to a complete stop before shifting from R to D or D to R or to P.

The only problem I have with it now is the dipstick tube has come loose. It's till there but it moves around a lot. Not sure what the deal is with that.
 
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Old Jun 5, 2017 | 07:44 AM
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Mark Kovalsky
Frmr Ford Trans Engr
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Expect about 250,000 miles from it.
 
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