Trans slipping... upgrade to PI gearing with reman trans?

[SHO T1M3]

So my transmission is starting to slip a bit on 2-3 shifts under WOT.

2013 SHO PP purchased with 46k, unleashed 93 octane 3 Bar tuned at 56k.

I'm thinking I might eventually need a rebuild and found that remanufactured might be a better route.
I also found that base SHO's have a 2.77 final drive, PP's have a 3.16, and Interceptor sedans have 3.39!
I was wondering how difficult it would be to source a PI final drive to install on my '13 PP...
Anyone know how difficult that would be or if maybe just finding a complete PI trans and swapping it out. And if swapping is a better option, would the paddle shifting function still work?

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[ajpturbo]

I bet everything works...i would love to do that...i think swapping just the final drive is easy once the trans is out

 

[BiGMaC]

Great idea if you're gonna have to replace it anyway...

 

[13TTPI]

Unless the 14+ Interceptors have a different final drive ratio, I wonder where you received the info that they have a 3.39 ratio.  Attached is a segment of my car's build sheet showing the 3.16.

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[ajpturbo]

I think the non ecoboost PI have the 3.39

 

[SHOdded]

Maybe based on this:
http://adamsonindustries.com/content/Ford%20NGPI%20Info/Police%20Interceptor%20Mod%20Guide%20Section%201_DRAFT_10_11.pdf

and this:
http://www.greshamfordfleet.com/2013_PI_Source_Book.pdf


A sample VIN check result on https://www.etis.ford.com
* Illustration shows model only
Taurus, 3.5L Cyclone V6 Petrol TI-VCT, Kodiak Brown

VIN Number:   1FAHP2M87DG199738
Primary Features
Build Date:   22.01.2013
Vehicle Line:   Taurus
Body Style:   Taurus Police
Version:   Police Version
Engine:   3.5L Cyclone V6 Petrol TI-VCT
Transmission:   6 Speed Auto Transmission 6F50
Drive:   LHD 4WD (FTD)
Axle Ratio:   3.39
Emission:   With California/Green State Req
Air Conditioning:   Manual Air Conditioning
Territory:   (+)"USA"
Paint:   Kodiak Brown

Can't get enough info?
https://www.fleet.ford.com/truckbbas/topics/2012/modGuide.html

 

[Macgyver]

I know this is an old thread.

The question would be. Since the PI gearing is "Taller" . Would this create less stress on the trans and such so you might not see the torque errors and maybe trans shifting problems ?

 

[FoMoCoSHO]

I know this is an old thread.

The question would be. Since the PI gearing is "Taller" . Would this create less stress on the trans and such so you might not see the torque errors and maybe trans shifting problems ?

Wait, isn't it shorter?

 

[Macgyver]

Well yeah whatever the term is.

But since gearing makes "Work" easier. Couldn't this solve a little of the "too much power on launch" that the SHO has ?

 

[autobahn terror]

I thought about this myself, but since decided that the payoff vs. time and money weren't in line. 3.16 to 3.39 just isnt a big enough difference to me. 3.73 on the other hand...a man can dream...

 

[irondoor19]

I thought about this myself, but since decided that the payoff vs. time and money weren't in line. 3.16 to 3.39 just isnt a big enough difference to me. 3.73 on the other hand...a man can dream...

t

yea, I Just checked my Window Sticker
for my 2013 PI Ecoboost 3.5L TT
and the Final Drive is 3.16....