4r70w/4r75w - 2003-04 Mach 1 Registry Owners Club

INDY · 12-29-2006, 08:01 PM

Well I found someone that knew how to tell which trans is which. As far as the Machs go its a crap shoot you could have either one. Heres how he told me to check to see which one I have. With the car jacked up or on a rack look above the gear selector on the trans. The 4r75w has a sensor right above it and another one about 6-8 inches behind it. The 4r70w only has the rear sensor, the one above the gear selctor will just have a plug in the hole. Thats how I was told to tell the difference between the two trannys. My car has the 4r70w, but I know a few others on the board have been told that they had the 4r75w by their tranny guys. So you could have either one

. Hope this helps other as it has helped me.

machowner · 12-29-2006, 09:23 PM

what is the difference, one better than the other?

MyLittlePony · 12-29-2006, 09:55 PM

Simple one

03 have 4r70w

04 Have 4r75w

You can just call the 4r75w the latest edition of the 4r70w

beerformeplz · 12-29-2006, 10:26 PM

I belive that I read somewhere that the 4r75w could handle more torque.

darkshadow mach · 12-29-2006, 10:30 PM

I read somewhere that the 4r70w can handle 700 lb/ft of torque whereas the 4r75w can handle 750 lb/ft of torque. someone tell me if im wrong...

edit: saw it in a tech article on Modular Fords

"4 is the number of forward gears. R is Rear drive, 70 or 75 is the torque capacity of the trans
without the zero (700-750 ft lb on the input shaft) W is for Wide ratio."

INDY · 12-30-2006, 07:08 PM

I was told that both trannys can be built to handle the same amount of power in the end.

MyLittlePony · 12-30-2006, 07:43 PM

That torque firgure is not rear wheel torque...it's at the tranny.
Don't try 700 rwtorque in a stock tranny...smoke them clutches hard.

birdman941 · 12-30-2006, 08:43 PM

Wouldn't the trans code on the door tell you?
(assuming they still put it there)
Oasis should also.

Slow Gray Mule · 01-15-2007, 01:33 PM

Quote:

Originally Posted by darkshadow mach

I read somewhere that the 4r70w can handle 700 lb/ft of torque whereas the 4r75w can handle 750 lb/ft of torque. someone tell me if im wrong...

edit: saw it in a tech article on Modular Fords

"4 is the number of forward gears. R is Rear drive, 70 or 75 is the torque capacity of the trans
without the zero (700-750 ft lb on the input shaft) W is for Wide ratio."

I believe that the torque rating may actually be in Newton Meters not Foot pounds.

12-29-2006, 08:01 PM	#1
INDY PERFORMANCE SOLUTION Join Date: Apr 2006 Location: PHX AZ Posts: 1,057	4r70w/4r75w Well I found someone that knew how to tell which trans is which. As far as the Machs go its a crap shoot you could have either one. Heres how he told me to check to see which one I have. With the car jacked up or on a rack look above the gear selector on the trans. The 4r75w has a sensor right above it and another one about 6-8 inches behind it. The 4r70w only has the rear sensor, the one above the gear selctor will just have a plug in the hole. Thats how I was told to tell the difference between the two trannys. My car has the 4r70w, but I know a few others on the board have been told that they had the 4r75w by their tranny guys. So you could have either one . Hope this helps other as it has helped me.

12-29-2006, 09:23 PM	#2
machowner Registered User Join Date: Nov 2005 Location: TN Posts: 1,455	Re: 4r70w/4r75w what is the difference, one better than the other? __________________ 2004 Azure Blue, 5sp. Build Date: 1/24/2004 Other: 2000 Lincoln LS V8, White Pearlescent Tri-Coat 1995 F-150 4x4, 5.0, duals, custom interior

12-29-2006, 09:55 PM	#3
MyLittlePony OG Mach1Misfit Join Date: Apr 2004 Location: Ofallon, MO Posts: 1,543	Re: 4r70w/4r75w Simple one 03 have 4r70w 04 Have 4r75w You can just call the 4r75w the latest edition of the 4r70w

12-29-2006, 10:26 PM	#4
beerformeplz Roll Tide ! Join Date: May 2004 Location: Richmond Posts: 2,491	Re: 4r70w/4r75w I belive that I read somewhere that the 4r75w could handle more torque. __________________ "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. " - Thomas Jefferson

12-29-2006, 10:30 PM	#5
darkshadow mach one lucky guy Join Date: Apr 2005 Location: Sugar Land, TX Posts: 477	Re: 4r70w/4r75w I read somewhere that the 4r70w can handle 700 lb/ft of torque whereas the 4r75w can handle 750 lb/ft of torque. someone tell me if im wrong... edit: saw it in a tech article on Modular Fords "4 is the number of forward gears. R is Rear drive, 70 or 75 is the torque capacity of the trans without the zero (700-750 ft lb on the input shaft) W is for Wide ratio." __________________ "Yeah, that's right... you know you're jealous." Last edited by darkshadow mach; 12-30-2006 at 01:47 AM.

12-30-2006, 07:08 PM	#6
INDY PERFORMANCE SOLUTION Join Date: Apr 2006 Location: PHX AZ Posts: 1,057	Re: 4r70w/4r75w I was told that both trannys can be built to handle the same amount of power in the end.

12-30-2006, 07:43 PM	#7
MyLittlePony OG Mach1Misfit Join Date: Apr 2004 Location: Ofallon, MO Posts: 1,543	Re: 4r70w/4r75w That torque firgure is not rear wheel torque...it's at the tranny. Don't try 700 rwtorque in a stock tranny...smoke them clutches hard.

12-30-2006, 08:43 PM	#8
birdman941 Torque wins! Join Date: Dec 2004 Location: Florida Posts: 13,167	Re: 4r70w/4r75w Wouldn't the trans code on the door tell you? (assuming they still put it there) Oasis should also. __________________ The ORIGINAL Project R build thread is back ! 5.4 32V NA Streetable 404/387 26.56 MPG "I don't like repeat offenders, I like DEAD offenders" Ted Nugent "A big engine hardly working is more efficient than a little engine screaming its head off" Jay Leno

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