Hi guys.
This is a simple way of setting an equal steering angle for left and right without messing up much. This applies to the stock receiver/servo.
I haven't seen this posted here before, so here goes.

You will need:

1 small Philips screwdriver
1 Vernier caliper

Open up the receiver and remove the printed circuit board.
Next to the servo plug pins you will see a small metal cross - it's a potentiometer and it acts like a receiver servo trimming.
Turn the steering to one side and measure the distance between the upper suspension arm mount on the diff and the tip of Ackerman steering arm. Turn the steering to the other side and adjust the small potentiometer until you have equal throws on each side.
Make sure the steering rods are equal lenght on both sides before doing this and adjust toe-in/toe-out in the end. In my case, i had to shorten one turn the right rod.

I'm sure there is a throw limiter inside the servo because i didn't find any on the receiver and the servo has a lot of movement to give! Next time maybe.