mains tracking photosby ScoobySeptember 27, 2020October 5, 2020 Aircraft has to be level in two planes to measure tracking. Here we show in the direction of the fuselage. Aircraft has to be level in two planes to measure tracking. Here we show in the direction of the wings. First, mark centerline from crankshaft. Then mark directly under tailwheel. This is to establish a centerline. Draw a line between these two points to get the exact centerline Straight edge pushed against rim marking aft end of straight edge on right main measuring right main distance this is from centerline straight edge against left main measuring how far left main is from centerline My shop crane makes leveling the aircraft simple! measuring cant of left main measuring cant of left main measuring cant of right main measuring cant of right main previousoiling all ball joints LPS-2nextnew main wheels photos