the above post doesn't make alot of sense to me. usually a tranny with a higher torque rating is heavier and thus would cause the engine to have to produce more power/torque to get it moving and thus emissions would be higher. unless the 4r100 is a newer design that runs more efficiently than the 4r70w? anybody know? i did read in my owner's manual that the 4r100 "learns as you drive" so that it can tailor shifting to your preferences. no such mention was made of the 4r70w.

 

seems like alot of work to go through (installing the 4r100 in california s-crews only) when they could just as easily program different shift points into the 4r70w. i'm just really wondering if any california s-crews actually have the 4r100 or if that is just some rumor that got started here, or somewhere else.

btw, anytime you burn more fuel you are producing more emissions, right?

[This message has been edited by TroyK (edited 06-20-2001).]

 

Hey Guys,
If you read my previous message, My truck is a California truck and I have the 4R70W. So not all CA trucks come equipt with the 4R100.

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2001 F-150 SC 4X2 Lariat, Oxford White,
5.4L, Class III Tow Package w/1.42" radiator, 3.55 LS, Flowmaster Exhaust, Line-X Bed Liner
2000 XLT Sport Expedition 4X4, Laiser Red/Grey
4.6L, Class III Tow Package, Flowmaster Exhaust
"ON ORDER"
(2002 Limited Explorer 4X4, Pearl White/Black Leather,
4.6L, 3.73 LS, Class III Tow, Moonroof)

 

I have a California S-crew with a 4R70W . How about a show of hands from all those Californians with the 4R70W .

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2001 S-Crew 4x4 White 5.4L XLT Off Road & Tow Package 17 in. Aluminum wheels Snugtop Shell

 

for those of you not sure how to check and see what tranny your s-crew has...just pop the hood and see what the tranny dipstick cap has on it. if it says "mercon v"...then it is the 4r70w. if is says just "mercon"...then it is the 4r100. these two tranny fluids are not interchangeable. thus you can't use "mercon v" in the 4r100, and vice versa.

 

So does that mean you can bolt a 4R100 tranny into our 4R70 trucks without changing the TCU?

 

My california truck has the 4R70W as do all SuperCrews. Now, only the 7700GVWR package gets the 4R100 according to the ordering guides and when I was test driving various trucks even the SuperCabs had 4R70W transmissions in them.

------------------
2001 SuperCrew Lariat 4x4
Deep Wedgewood Blue/Graphite Captains chairs
5.4L, trailer tow, sunroof, bed extender

And a list of mods that will have me busy (and broke!) for months!

'92 Stealth RT/TT
Feelin' the need for more boost!

 

No one mentioned the Lightning's had the 4r100....

That is impression that Ford is using the 4r100 in the F150's(have one in the F250)

This must be with the 8800lb towing package in the F150.....

------------------
2000 F250 PSD Auto 19+mpg PIII propane exhaust Ramair ThermoWrapped
2001 SuperCrew 4.6 auto 19+mpg K&N
1969 Mach1 351C 4spd 3.50 LS Autocrosser

 

I could see them using the 4r100 in the Lightning and with say 3.73 gears or towing 7700 or 8800lbs...

The 4r100 is only rated at 500ftlbs...

The 4r70 cant handle that torque...

Different T/C I believe...

------------------
2000 F250 PSD Auto 19+mpg PIII propane exhaust Ramair ThermoWrapped
2001 SuperCrew 4.6 auto 19+mpg K&N
1969 Mach1 351C 4spd 3.50 LS Autocrosser

 

My new california screw has the 4r70w transmission (u code on door) as well as the merc v rating for transmission fluid. it has a build date of 03/2001. as far as i understand the earlier california models did come with the 4r100 because that is what transmission was certified to meet the LEV requirement (low emissions vehicle). i believe the only current f150 to have the 4r100 are the lighning, f150 with 7700 payload package (not available for the SC) and maybe the Harley Davidson edition.

 

Hey norcal- I have a LEV(there is a sticker on the window, Are you saying that I have a 4r100 auto?? I dont know just wondering..I have one in the diesel F250...

------------------
2000 F250 PSD Auto 19+mpg PIII propane exhaust Ramair ThermoWrapped
2001 SuperCrew 4.6 auto 19+mpg K&N
1969 Mach1 351C 4spd 3.50 LS Autocrosser

 

The 7700GVWR package is not the tow rating of the vehicle. It is an option package that essentially gives you the old (pre-2000) F250LD complete with the 4R100 trans, 7-bolt wheels, 10.25" rear axle and 7700 GVWR (the max on the SuperCrew is 6750lb). The GVWR is the gross vehicle weight rating (basically the max that the vehicle can carry on it's 4 wheels) and is NOT the trailer tow rating. Unfortunately this option is not available on the SuperCrew. For the 2002MY this is available with 4.10 gears for an even higher tow rating and yet it still isn't available in on the SCrew.

from Kelly Blue Book...

627 Payload Pkg. --2700-lb. • 4WD Styleside w/139" W.B. 1101.00 1295.00
(GVWR 7700-lb.) (Payload is Reduced by 70-lbs. When in Combo w/Emission Equipment-422) (N/A 2WD Models, 4WD Styleside w/157" W.B. or 4WD Flareside) (N/A w/Off-Road Equipment Group-55R or Sport Group-94S or 94T) (Req's 99L 5.4L Engine & Auto Trans.-44E) Includes Larger Brakes; H.D. Frame, Springs & Shock Absorbers; H.D. Electrical/Cooling Group; 3.73 Axle Ratio; Argent Styled Steel (XL) or Chrome (XLT & Lariat) Wheels; (5) LT245/75R16D All Terrain OWL Tires & Snow Plow Capability.

FWIW, trans 44E is the 4R100 (44U would be the 4R70W).


------------------
2001 SuperCrew Lariat 4x4
Deep Wedgewood Blue/Graphite Captains chairs
5.4L, trailer tow, sunroof, bed extender

And a list of mods that will have me busy (and broke!) for months!

'92 Stealth RT/TT
Feelin' the need for more boost!

 

Perhaps I am misreading the Ford info . Maybe you can translate this link for me . Just copy it into your web browser . I read 7700# trailer weight for Screw 4x4 5.4L Automatic .


http://fordtruck.fordtraining.com/cg...tta_150pct.htm



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2001 S-Crew 4x4 White 5.4L XLT Off Road & Tow Package 17 in. Aluminum wheels Snugtop Shell

 

My XLT Screw comes with 7700 # tow rating . It is an LEV with a 4R70W . The build date is 07/2000 .

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2001 S-Crew 4x4 White 5.4L XLT Off Road & Tow Package 17 in. Aluminum wheels Snugtop Shell

 

I'm from california, and my supercrew has the 4R70w transmission, with the U code on the door tag?

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2001 Supercrew 4x4
oxford white, arizona beige lower tone
3.55 LS

1998 Ford F-150 XLT S/C
KN Filter
one chamber flowmaster
Kenwood cd player
Polk speakers
pioneer amp and 10" subwoofer
3.55 gears