Making a 2wd 4l80e work with np208 and VSS

[Jspohr]

1994 6.5TD c2500 suburban with 4l80e (OBD1)

So I'm gathering parts to do a 2wd to solid axle 4x4 conversion. I've narrowed down my transfer case choices (for several reasons) to a np241 or np208. NP241 will require a drivers drop front end which is more difficult to come by, but I haven't ruled it out. will be using my existing 4l80e and converting to 4wd

np208 is passenger drop (mostly, drivers are extremely rare). My questions/concerns are:

1. Does anyone know if any NP208's ever came with VSS.

2. How could I go about getting a VSS on a 208?

3. If I get a VSS on a 208, is it as simple as unplugging the tail VSS harness from the 4l80e and relocating to the tail of the 208 tc?

4. What does my computer care (since it's OBD1) if I just leave the VSS harnesses in 2wd positions (on the transmission) and add the transfer case? Since the 2H and 4H are both 1:1 on the transfer case I should only have problems (if any) with 4L....so.... Would my issues be just an incorrect speedo in 4L, or will I have fuel delivery,shifting, and computer issues also???

5. Anyone know of a specific kit to mod a np208 to VSS that will sync it to a 4l80e?

6. If I go with NP241c is it as simple as moving VSS harness from rear of 4l80e and plugging in to rear of np241c??

any help is greatly appreciated.

 

[obijuank5]

1994 6.5TD c2500 suburban with 4l80e (OBD1)

So I'm gathering parts to do a 2wd to solid axle 4x4 conversion. I've narrowed down my transfer case choices (for several reasons) to a np241 or np208. NP241 will require a drivers drop front end which is more difficult to come by, but I haven't ruled it out. will be using my existing 4l80e and converting to 4wd

np208 is passenger drop (mostly, drivers are extremely rare). My questions/concerns are:

1. Does anyone know if any NP208's ever came with VSS.

Passenger drop were all mechanical.

2. How could I go about getting a VSS on a 208? A signal generator.

3. If I get a VSS on a 208, is it as simple as unplugging the tail VSS harness from the 4l80e and relocating to the tail of the 208 tc?
Likely that easy.
4. What does my computer care (since it's OBD1) if I just leave the VSS harnesses in 2wd positions (on the transmission) and add the transfer case? Since the 2H and 4H are both 1:1 on the transfer case I should only have problems (if any) with 4L....so.... Would my issues be just an incorrect speedo in 4L, or will I have fuel delivery,shifting, and computer issues also???
It probably doesn't know the difference. I don't know what it does in 4l.
5. Anyone know of a specific kit to mod a np208 to VSS that will sync it to a 4l80e?


6. If I go with NP241c is it as simple as moving VSS harness from rear of 4l80e and plugging in to rear of np241c??
Yes

any help is greatly appreciated.

I put my thoughts in the quote.
This is a factory configuration so the parts exist and go together without much fuss at all.

I would look for a vss passenger drop 241 for simplicity sake. They are a bit difficult to find though.

 

[Not A Bronco]

im planning on doing a big hub D44 SAS on my 94 6.5TD 2wd 3500, im planning on running an np205 passenger drop divorced t-case to avoid messing with the 4l80e im not sure about 208s and 241s but i know they make retrofit vss kits for the 205