This is a TruTrak DigiFlight II Autopilot head with two DSB-B Servos. I removed this from my RV-7 and replaced it with GRT Avionics servos since my displays already have the drivers built in. Was working when removed. I will include the new GRT mounting brackets for the pitch servo (they're the same as the TruTrak mounts), and the original TruTrak roll servo mounts. I can also provide the GRT wire harness. You'll have to remove the pins in the connectors and move them to match the TruTrak pinout, but this will be a good start. I re-pinned the existing TruTrak harness so I wouldn't have to pull new wire. The servos are compatible with the latest Bendix King version of the head unit, too. $750 or best offer. Text me (Eight-Zero-Five) Eight-Zero-One-2971, or message here.