g35 swap problems

[kujo13]

Im driving a 240sx sr20det and working on a g35 transmission swap. I allready purchased the convertion kit that is mentioned in this forum( http://zilvia.net/f/drivetrain/370705-z33-sr20-adapters-back-limited-quantities.html ). The problem i have is that g35 doents have the speed sensor so when i cant get the signal from the transmission do i get it through the ABS system? how can i get my speed meter work when i do the swap?

p.s. im using Aem Stand Alone ECU