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Transmissions This forum is to exchange information about the 4R70W & 4R75W transmissions.

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  #1  
Old 01-24-2017, 05:28 PM
frosst421 frosst421 is online now
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Transmissions..

What is the difference in as much detail as possible in a 04 police interceptor tranny and a regular crown victoria 4r70w tranny?

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Old 01-24-2017, 06:05 PM
Mackdombles Mackdombles is offline
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http://www.mercurymarauder.net/forum...ad.php?t=23240

Seems to explain it pretty well.
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Old 01-24-2017, 06:21 PM
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police has 11.25 "converter, lx has 12" converter. police has longer tailshaft to accomodate aluminum driveshaft. internals are the same. its all in the tune as police has 3.27 or 3.55 rear axle ratio, lx has 2.73 unkess a sport model
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Old 01-24-2017, 06:25 PM
frosst421 frosst421 is online now
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It is a sport

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Old 01-24-2017, 06:26 PM
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And I had planned on getting the aluminum shafts as well to compensate for the tail length.

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Old 01-24-2017, 06:27 PM
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I'm just worried about the gear ratio..

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Old 01-24-2017, 06:29 PM
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sport has 3.27 open differential. tailshaft and converter biggest change, but converter can be swapped and so can tailshafts. internals are the same. send a pm to member 88grandmarq. he builds/repairs these trans.
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Old 01-24-2017, 06:30 PM
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trans doesn't care what ratio, that is in the pcm tune
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Old 01-31-2017, 06:14 PM
frosst421 frosst421 is online now
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Well I have fixed the tranny with great thanks to 88

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Old 01-31-2017, 07:53 PM
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OK, so fill us in...what was wrong with it and what did you do to fix it?
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Old 01-31-2017, 09:30 PM
88grandmarq 88grandmarq is online now
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OD servo snap ring was broken and the small debris had jammed the od servo regulator valve. Removed the debris from the valve and installed a new snap ring... once he got the od servo to engage the band, everything worked correctly.
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Old 02-01-2017, 11:05 AM
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Well like 88 said it was a very small piece of the snap ring that went into my valve body and got caught up in my regulator valve.. what I didn't know was that j had to move the OD band back into place in order for the servo piston to engage it properly so I put everything back together without doing that.. per ford manufacturers service manual.(big ass red book) it had nothing in there about moving the actual band back n in place.. so I didn't know to do it.. only when everything was back together and I was going on my 9th qt. of motorcraft merc on V ATF did I think to call 88.. I honestly called him cause I was wondering where all the damn ATF was going..lol i thought 9 qts was a bit much.. so he told me an even 10 qts would be perfect.. then he asked me if I moved the damn band back in place for the OD servo to engage it... nooooooooo..... I have to do that?? I said. So I had to take it all back apart and use a hacksaw blade to n position the band where it needed to be.. and when I put the servo piston in there's a very distinct click that let's you know that it engaged.. so I put everything back together and took er for a test drive.. 1st....2nd.... 3rd.........come on please b right.......OD4th!!! PHEW!!! it worked!! I fixed it! without spending all sorts of money on a tranny rebuild kit or a reman.. all thanks to the guidance of some very generous knowledgeable ppl.. thanks again..

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  #13  
Old 02-01-2017, 04:14 PM
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Dayum this is great news!!!! I gotta say we got some serious knowledge here! I am happy it was simple - Chris is a good guy. Can't wait for some of you to meet him!
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