i like your cardboard includes gussets to tie in 2 sides of the mount to the axle for strengthComparison of the mount from ruffstuff, and a cardboard mocked up version to get the mounting point back some, per the specs. The cardboard version would push the point back about 2 inches, giving us longer upper arms Y link. The center of the axle is where the cardboard piece is shown. View attachment 1645184 View attachment 1645186