I found a new, better way to make landing gear. Im probrably not the first one to find it though. Download the craft to see how its done or read these instructions:

                     Wheel Hinge rotator input:

just landingGear, maybe make the speed somewhere around %30. Make a angle variable output on this hinge, it is essential to making this work. Lets just call that variable “Lg”.
Variables:
Name: G1 Expression: Lg < 89.9 Name: G2 Expression: Lg > 0.1

             Landing gear door hinge rotator input:

G2 & G1.
And that should make a functioning landing gear door. Much more simple than previous landing gear doors.