As per the Small Car Site:
QUOTE
All the OBD2 engines from 1996 on require a vehicle speed sensor. The engines up to 1995 can also benefit from an SSK5, most conversions idle and perform better with one installed. This hall effect speed sensor bolts to a Vanagon transmission and the magnetic ring to a cv joint flange. It has 5 pulses per axle revolution which closely approximates the Subaru pulses per mile. Fits Syncro, 2wd manual and automatic.
As installed on my car:
The bracket is set-up for a 901 transmission, but could be adjusted to fit a wide range of applications. The sensor is brand new and has never been installed. I ran this on my car for a very short period of time and have since gone a different direction.
Sold new for $55 from Small Car Performance. Asking $40 shipped.
-Britain