Some newer Nissans are fitted with electronic speedometer, which uses a signal sender bolted to the gearbox (instead of the cable drive).
Signal Sender
The A14/A15 60-series gearbox can take an electronic sender for electronic speedometer, you can unbolt the cable drive and bolt in sender from S13 or R31 71C gearbox.
Cable drive
Adapter Sender
Discussion: Interesting blog from japan ,late R32gts-t FS5W71C behind an a-series...![]()
Speedometer
Auto Meter sells various sizes and styles of electronic speedometers.
Some guys fit an entire S13 cluster into the dash. See Speedometer#Silvia