I think the Van's method is overly complicated..
The two important things to achieve are -
1 - The faces of the gear legs where the axles bolt on need to be parallel in relation to each other.
2 - The axles need to be the same distance from the rear of the fuselage.
The way I did it (Borrowed from VAF forums, of course!) was to drill and loosely mount the gear legs using the single bolt as per Vans instructions, I then took two 4ft pieces of angle and matched drilled them in the centre to the axle mounting bolt holes, then bolted the axles and the angles to the legs (The longer the angle, the more accurate the result - 6ft seems to be the most common, I used what I had).
Then I picked a central point on the rear bulkhead (Tail wheel spring mount is a good place, if you have this mounted already), and used this point to measure up to each gear leg using a taut tape measure. I then moved the legs around until they were parallel with each other, by measuring the distance between the clamped angle pieces at the front and the rear, and the same distance from the rear of the fuselage.
This method I think is the most simple, and doesn't require the fuselage to be level. I leveled my fuselage anyway, and double checked my results using the Vans plumb bob method, but turns out I didn't need to
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
. Gear leg alignment for me was a non-event, thanks to the info on this forum! Good luck!
Hugh