4r55e swapped to 5r55e question

[95MEXIFORD]

So i swapped out my 96 b4000s 4r55e trans with a 2001 5r55e. My question is, can i also just swap the DTR ( digital transmission range sensor ) from one to the other or do i have to rewire the connection to accept the 5r55e sensor?

 

[sirrealism]

Not sure. Can you use the one from the 4r55e. I would think you have a better chance with that one then the 5r55e.
I am wondering how well this is going to work since the 4r55 is a 4spd and the 5r55 is a 5. There is very little differences in the guts but the valve body and the programing is different. Looking forward to your hearing how this works

Sent from my SM-G930P using Tapatalk

 

[RonD]

4R and 5R transmissions are computer controlled, the engine computer(PCM/ECU/EEC)
55E just means it is for a 4.0l engine, 44E were for 2.3l and 3.0l engines

The computer software is the only difference between 4R and 5R
So there is no benefit in installing a 5R in place of a 4R unless you also change the computer or its software.
5R software turns on OD(overdrive) when RPMs get too high in 1st gear, this gives the 5R its 2nd gear, 4R software doesn't do this.
And that's how the "5th gear" was added to the 5R, 1st + OD = 2nd gear.

4R gears 2.47 /........../1.47 / 1.00 / 0.75 - 4 speed
5R gears 2.47 / 1.87 / 1.47 / 1.00 / 0.75 - 5 speed

When you combine 2.47(1st) with 0.75(OD) you get 1.87, which is the 5R's 2nd gear
This gives the 5R a smoother shift ratio, the 2.47 to 1.47 was quite a gap in ratios

If your 5R is shifting from 1st to 3rd that would be correct using 4R shift control(software), it wouldn't be a DTR issue.
Use the DTR that fits your wiring harness