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what trans do I have

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Old Sep 23, 2008 | 09:07 PM
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what trans do I have

I have recently picked up a 2000 f150 with the 5.4 liter, just wondering if I can find out what trans it has? It has 3.55 gears and is a four door with a 6.5 foot bed. Also was wondering if it is safe to use the prestone radiator flush as I would like to flush the coolant system, thanks.
 
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Old Sep 23, 2008 | 10:26 PM
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found it

found it, looks like it is the 4 R100 trans, probably stronger than the 4r70W
 
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Old Sep 24, 2008 | 08:31 PM
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yes it is. it is used in the V10 superduty's and some of the diesel superduty's
 
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Old Sep 24, 2008 | 11:04 PM
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coolant flush

yep looks like the trans fluid is clean and it shifts fine so probably in good shape. Thinking of using the prestone coolant flush on it, a friend said that you have to be careful using the flush as it can damage gaskets if you do not get it all out.
 
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Old Sep 25, 2008 | 07:37 PM
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Sense we are on the subject what would my 1997 F-150 2wd 4.6L have?? I can provide more info if needed.
 
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Old Sep 26, 2008 | 01:47 AM
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Both trucks should have a trans code of "U" which is the 4R70W. It's a good tranny.
The "E" code trannys are usually in the 7700 package with 7 lug wheels, Lightnings and Superduty's. Rarely are they found in the standard F150's.
 
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Old Sep 27, 2008 | 09:59 AM
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Also just for the record, the Supercrew didn't have an available 6.5 bed until mid 2006 I believe. Lx is correct...only the 7700lb payload got the 4R100
Rich
 
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Old Sep 27, 2008 | 12:29 PM
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trans code

yep looks like it is the U code as mentioned. Somewhere I read 6.5 foot bed but will have to measure it, seems like it may not be quite that long.
 
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Old Sep 27, 2008 | 01:36 PM
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5.5ft on the screw, 6.5 on SCAB and std cab shortbed.
 
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Old Sep 27, 2008 | 01:59 PM
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ok I have the supercab
 
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