'02 Explorer Tranny Question

DBRACING · 10-24-2005, 12:30 PM

Hi All

I have a '02 Explorer 4WD V6. My tranny (5R55W) went south and I'm wondering if I could replace it with a 5R55S out of the same year Explorer. I know the casing and the electrical connections are the same, but, I don't know if it would work with the 5R55w computer.

Thanks!

davidmmm69 · 10-24-2005, 07:34 PM

those trannys come up on ebay all th e time..

Glacier991 · 10-24-2005, 09:18 PM

First off let me disclaim any expertise on this. I know a reasonable amount about FORD trannies.... but when the 5R55E went into the W, S and N...... well let's just say I am still learning.

Anyway I am going out on a limb. I think you could switch an S into place of a W. They are close... I mean really really close sisters under the skin. From what I know the only difference is gearing.

Their gearing is the same in R, 1st, 3rd and 4th (3.07:1; 3.22:1; 1.54:1 and 1.00:1 respectively) 2nd differs and so does 5th. (2nd: 2:41 on W vs 2.29 on S. 5th: 0.75:1 in the W vs 0.71:1 in the S.

I was concerned that the computer inputs might be off swapping, but those ratios are so close I'd think you can do it easily.

You have been warned about idiots like me. Take your salt.

ps. Both started out as 2WD RWD only... Make sure the S can do the 4WD thing. (May be nothing more than a different output shaft and extension housing at the rear of the case).

DBRACING · 10-25-2005, 08:00 AM

Thanks for the input.

I put the tranny in last night. I'll keep you guys posted as to the outcome.

10-24-2005, 12:30 PM	#1
DBRACING Wannabe Elite Explorer Rockland,NY '02 Explorer Join Date: Oct 2005 Posts: 2 Vehicle Specs (Original Poster)	'02 Explorer Tranny Question Hi All I have a '02 Explorer 4WD V6. My tranny (5R55W) went south and I'm wondering if I could replace it with a 5R55S out of the same year Explorer. I know the casing and the electrical connections are the same, but, I don't know if it would work with the 5R55w computer. Thanks!

10-24-2005, 07:34 PM	#2
davidmmm69 Wannabe Elite Explorer 1995 2wd 4dr explorer Fall River Ma... 2002 XLT Explorer 4WD Join Date: Sep 2003 Posts: 2,578 Vehicle Specs	those trannys come up on ebay all th e time.. __________________ 1995 Explorer 2WD on 33"BFG Muds 7" lift... 2002 Explorer Sport 4X4 255/75/16

10-24-2005, 09:18 PM	#3
Glacier991 EF Tranny Guru Sacramento, CA 95827 1992 XLT Join Date: Feb 2003 Posts: 9,830 Vehicle Specs	First off let me disclaim any expertise on this. I know a reasonable amount about FORD trannies.... but when the 5R55E went into the W, S and N...... well let's just say I am still learning. Anyway I am going out on a limb. I think you could switch an S into place of a W. They are close... I mean really really close sisters under the skin. From what I know the only difference is gearing. Their gearing is the same in R, 1st, 3rd and 4th (3.07:1; 3.22:1; 1.54:1 and 1.00:1 respectively) 2nd differs and so does 5th. (2nd: 2:41 on W vs 2.29 on S. 5th: 0.75:1 in the W vs 0.71:1 in the S. I was concerned that the computer inputs might be off swapping, but those ratios are so close I'd think you can do it easily. You have been warned about idiots like me. Take your salt. ps. Both started out as 2WD RWD only... Make sure the S can do the 4WD thing. (May be nothing more than a different output shaft and extension housing at the rear of the case). Last edited by Glacier991; 10-25-2005 at 11:34 AM.

10-25-2005, 08:00 AM	#4
DBRACING Wannabe Elite Explorer Rockland,NY '02 Explorer Join Date: Oct 2005 Posts: 2 Vehicle Specs (Original Poster)	Thanks for the input. I put the tranny in last night. I'll keep you guys posted as to the outcome.