4r55e to 5r55e swap. Latest year that will work

[timmyflew]

I have a 2002 FX4 4.0 Automatic 4R55E. Will all 5R55E transmissions hookup without modification. Wanting to find the newest, lowest mileage transmission possible to replace mine when it
goes, again.

 

[RonD]

The 1998(some 1997) and up 4.0l OHV or SOHC used the 5R55E

But you do need to use a 2001 to 2011 5R55E in a 2002 because they have the added ISS external sensor above the shifter

So you are fine to use latest model you can find, but from a Ranger 4.0l or Mazda B4000, and 4x4, 2wd trans can not be converted

5R55N, S or W don't have dipsticks so are a pain to service, in case it comes up, lol

 

[timmyflew]

The 1998(some 1997) and up 4.0l OHV or SOHC used the 5R55E

But you do need to use a 2001 to 2011 5R55E in a 2002 because they have the added ISS external sensor above the shifter

So you are fine to use latest model you can find, but from a Ranger 4.0l or Mazda B4000, and 4x4, 2wd trans can not be converted

5R55N, S or W don't have dipsticks so are a pain to service, in case it comes up, lol

Thanks man. That's what I wanted to hear.

 

[Blueeyeseskimo]

Hello from Nome, Ak. I have a 1995 Mazda b4000le 4wd. With the 4r55e tranny. My cousin has a 03. Explorer sport trac. With a 5r55e 4wd. My transmission popped while I put it in reverse and now the reverse gear and 3-4 are gone. Will his 5r55e work as I cannot find a transmission in town or acquire a cheap donor case

 

[RonD]

Welcome to TRS

If the explorer also has a 4.0l engine it will work/fit, if not then no

The 4R55E and 5R55E are internally the same transmission with same solenoids, the 5th gear was done by computer software activating OD while still in 1st gear to get a split ratio faux 2nd gear
So the 5R55E will operate as a 4speed same as 4R55E does

There will be 2 extra sensors on the 5R one just above shifter, it doesn't need to be used on a 1995, and one at the rear drivers side for output shaft speed, also not needed in 1995
Your speed info comes from 1995 transfer case VSS sensor

I think you will need to use your 1995 DTR sensor, its on the shifter shaft of trans, not sure if the 2003 will be wired the same, but have a look

If this is your first automatic install one important step to NEVER forget is to install the torque converter inside the bellhousing FIRST, and get it fully seated into the pump and input shaft, spin it and push in, it will slide back farther 2 times as it seats on pump and shaft
Then you can install trans to engine block

Bell housing should go flush to block, NO FORCING them together using bolts, you WILL break the pump and that will be the end of that transmission

 

[Blueeyeseskimo]

Welcome to TRS

If the explorer also has a 4.0l engine it will work/fit, if not then no

The 4R55E and 5R55E are internally the same transmission with same solenoids, the 5th gear was done by computer software activating OD while still in 1st gear to get a split ratio faux 2nd gear
So the 5R55E will operate as a 4speed same as 4R55E does

There will be 2 extra sensors on the 5R one just above shifter, it doesn't need to be used on a 1995, and one at the rear drivers side for output shaft speed, also not needed in 1995
Your speed info comes from 1995 transfer case VSS sensor

I think you will need to use your 1995 DTR sensor, its on the shifter shaft of trans, not sure if the 2003 will be wired the same, but have a look

If this is your first automatic install one important step to NEVER forget is to install the torque converter inside the bellhousing FIRST, and get it fully seated into the pump and input shaft, spin it and push in, it will slide back farther 2 times as it seats on pump and shaft
Then you can install trans to engine block

Bell housing should go flush to block, NO FORCING them together using bolts, you WILL break the pump and that will be the end of that transmission

Yay! Thank you for the information. That saves me lots of money and thanks for everything you guys do here on The Ranger Station!