Re: Autopilot drive
Hi Damien, welcome to Sailnet.
My yacht has a Raymarine 12v linear drive fitted about 15 years ago, which I have just replaced with the same unit. Latest unit was only slighty different to the 15 year old model so it was easy to fit. Has performed flawlessly. The old unit was still working however it had started rumbling, which indicated that the ball bearings on the worm drive were starting to go.
If your boat already has Raymarine gear you are probably better offf sticking with the one brand to avoid compatibility issues.