Should Sport Mode Shift to 4x4?

[TheGoatman]

I don't know if the Raptor gets a different transfer case, but I believe both the Raptor and the Tremor get a different front differential that allows for limited slip at the front wheels. I imagine it's awesome for rock crawling!

I don’t hear anything mechanical happening between 4A and 4HI so I’m thinking no.

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[780]

50 cents.....its not 4A

Damn it. Well maybe scrap value would be higher? lol

 

[Buyer2021]

So is there somthing I should look at with my swap? Or be concerned about. I understand that because it works doent meanits right.

I wouldn't be.
I suspect that you have the electric IWE on your truck? So with your swap your truck is now configured exactly like a 2021 4A equipped truck.

FWIW after reading the IWE System info you posted I tend to agree with @Snakebitten.

IF you wanted further confirmation you might try disconnecting C1157 FRONT INTEGRATED WHEEL END (IWE) LH and C1291 FRONT INTEGRATED WHEEL END (IWE) RH then taking a drive using all four 2&4WD modes to see if any DTC's pop-up.

• By pulling those two connectors you would know that the IWE's are not ever getting a signal to disengage, which mimics the 'no-IWE' situation for the late version factory TOD
• If you don't get any DTC's then that would suggest your TOD TCCM isn't even trying to communicate with (disengage) the IWE's that you don't need for your late version TOD swap

IMO the only other possible (but very unlikely) concern would be if the front differential itself is somehow different between ESOF and TOD trucks. Again I tend to agree with @Snakebitten 's unproven assertion that there is no difference. I suppose one could run that to ground by comparing front differential carrier assembly (the internals of the differential) PNs between an ESOF VIN and a TOD VIN.

But that's all trying to apply logic to the Ford systems, and as you point out that's not always fruitful

My gut (nope, worth nothing) tells me your swap is perfectly functional as implemented.

 

[Jesse-Infotainment]

FWIW after reading the IWE System info you posted I tend to agree with @Snakebitten.

IF you wanted further confirmation you might try disconnecting C1157 FRONT INTEGRATED WHEEL END (IWE) LH and C1291 FRONT INTEGRATED WHEEL END (IWE) RH then taking a drive using all four 2&4WD modes to see if any DTC's pop-up.

• By pulling those two connectors you would know that the IWE's are not ever getting a signal to disengage, which mimics the 'no-IWE' situation for the late version factory TOD
• If you don't get any DTC's then that would suggest your TOD TCCM isn't even trying to communicate with the IWE's that you don't need for your late version TOD swap

IMO the only other possible (but very unlikely) concern would be if the front differential itself is somehow different between ESOF and TOD trucks. Again I tend to agree with @Snakebitten 's unproven assertion that there is no difference. I suppose one could run that to ground by comparing differential carrier assembly (the internals of the differential) PNs between and ESOF VIN and a TOD VIN.

But that's all trying to apply logic to the Ford systems, and as you point out that's not always fruitful

My gut (nope, worth nothing) tells me your swap is perfectly functional as implemented.

I did confirm the front differential part numebr is the same between trucks. I found a lariat FX4 5.0 3.31 gears and pulled the part number it was same as mine..

Ok well Ill leave it as is at this point. I dont believe there to be anything wrong. Its always good to know about this though

 

[Buyer2021]

I did confirm the front differential part numebr is the same between trucks. I found a lariat FX4 5.0 3.31 gears and pulled the part number it was same as mine..

Outstanding! Good to read that confirmation, @Snakebitten nailed it again!

 

[Tomatoboy]

I don't know if the Raptor gets a different transfer case, but I believe both the Raptor and the Tremor get a different front differential that allows for limited slip at the front wheels. I imagine it's awesome for rock crawling!

Looking at the order guide…The Raptor gets the hi-loc transfer case (the one with a mechanical lock for 4H plus 4A) as standard. A Torsen front diff is optional on 800A and standard on 801A. The hi-loc is also an option on the Tremor but isn’t standard except on 402A, otherwise you get the ESOF one without 4A. The Torsen is optional on all Tremors (400A-402A).

 

[TheGoatman]

Looking at the order guide…The Raptor gets the hi-loc transfer case (the one with a mechanical lock for 4H plus 4A) as standard. A Torsen front diff is optional on 800A and standard on 801A. The hi-loc is also an option on the Tremor but isn’t standard except on 402A, otherwise you get the ESOF one without 4A. The Torsen is optional on all Tremors (400A-402A).

This yes

@jesse-infotaiment - can u see the hubs move in 2nd vs 4wd

 

[Jesse-Infotainment]

This yes

@jesse-infotaiment - can u see the hubs move in 2nd vs 4wd

Ill have to look. SHould they?

 

[TheGoatman]

Ill have to look. SHould they?

My truck doesn’t have them so I can’t check, but I would think it would move it. I didn’t mean the hubs I mean the axles

 

[780]

Looking at the order guide…The Raptor gets the hi-loc transfer case (the one with a mechanical lock for 4H plus 4A) as standard. A Torsen front diff is optional on 800A and standard on 801A. The hi-loc is also an option on the Tremor but isn’t standard except on 402A, otherwise you get the ESOF one without 4A. The Torsen is optional on all Tremors (400A-402A).

Yes. The Tremor T-case really annoyed me when it came out. Based on the early literature, Ford made it sound like 4A was going to be standard equipment on the Tremor. I was all set to order a 401A based off that.

 

[Tomatoboy]

While I know it’ll never happen because Ford believes hard in market segmentation, I’d love for all three transfer cases and the Torsen to be a selectable option with any F-150, just like locking rears are an option across the board. The costs between them aren‘t massive.

 

[hotrodmex]

Very late back to the party, but reading through, I don't think this has been addressed completely.

It seems something makes hub disengagement desirable for the ESOF but unnecessary / not desirable with the TOD

I think this could be answered somewhat if someone logged the shift motor and the eIWE signal when shifting into 4HI with an ESOF in FORscan. My WAG is that the shift into 4Hi, with the synchronized shift to the locking dog-rings, has something to do with this.

To add some more context to my hypothesis, the 4A-HiLoc T-cases from the Raptor and Tremor 402a retain their eIWE. The eIWE signal is definitely commanded, as noted by one who has done the swap into a 22 Lariat, and had to add eIWEs for the TCCM to command. AFAIK they've had not issues when shifting in 4HI, but IDK they've done it on the fly; the purpose is for launches on a street truck.

Standard 4A don't have locking dog rings to get into 4HI, just the PWM signal to the clutch pack.

 

[JPNewIn22]

Not only does 4A kick on but auto stop also is turned off automatically. I didn’t notice that when I first posted this thread.

 

[powerboatr]

Not only does 4A kick on but auto stop also is turned off automatically. I didn’t notice that when I first posted this thread.

good to know
but my auto stop was factory delete . i would have never known.
sport is fun for those days when you just need a bit of vroom vroom

 

[Stemax31]

My XL has 4A.. BUT I added it.. Its not available on a trim lower than lariat. End of story.

I’d like to add 4A to my ‘21 Tremor. How did you add it? What did it cost?

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