Speedo problem rb25 neo swap

[Shortyrock125]

What's up guys I'm new to the skyline scene I just purchased an R32 gtst with rb25 Neo. When my car was delivered the odometer and speedometer wasn't working. Took apart the dash doesn't seem like there's an issue. a friend was telling me the later year rb gets it's signal off diff, earlier rb is mechanical gets it off the trans.ones analong ones electronic? How can I fix this or is it something else ?

 

Thanks

[KiwiRS4T]

R32 has a cable drive going from gearbox to back of speedo head. If the cable is there check to see if the inner cable is broken.

[KiwiRS4T]

double post

[GTSBoy]

You have to make a speedo drive gear for the RB25DET gearbox to drive an R32 cable drive.  The usual donor part is from a Navara, which used the same basic gearbox as RB25DET, but had cable drive.

If this has been done on your car already, then the single most likely problem is that the drive cable is broken.  They are old and they don't like the rather sharp bend that has to be put into them to fit the R32 cable onto the Navara sender conversion.