ls6 swap s13 help

[Groffunitracing]

hey if you have done a ls swap how did you get the speedo to work after? Or did you get need speedo gauge?

[The Dude]

Universal Speedometer Signal Interface (http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=126/)

[Groffunitracing]

thats exactly what the car has on it but doesnt work and the pervious owner cant figure it.. guess ill download manual and see if i can trace it out.. thanks might just get new speedo