To install the gear you will need four feet of 6061 1.5x2x1/8 AL angle AS&S P/N "03-48300"cut into four one foot pieces. One foot ¾ x ¾ x 1/8 AL U-channel AS&S P/N "03-38950" cut to two 6 inches pieces for the clamping brackets. A piece of old ultralight or motorcycle inner tire tube cut to four two inches wide sleeves. To prepare the spring for painting scrub it with wet Scotch scratch pad and Ajax or similar scrubbing detergent. Sand out any imperfections and the edges and fill any nicks by squeegee some filler over them and sand. Cut the axel holes with a 5/8 hole cutter . Make the axel holes big enough so the axels are loose without exerting any force to the inner wall of the holes as you tighten the axel nuts, Most of the material is unidirectional glass and it could split crack. Place the edge of the axel hole at least one and half inches from the bottom end of the spring. Be sensible when you tighten the axel nuts, even though the fiberglass is fairly strong material it’s still "plastic" in nature. The spring is not mounted solid to the fuselage, its mounted by clamping just firm enough to hold it in place over the rubber sleeves , Use two sleeves on each side (one over the other). Cut spacers from scrap aluminum to fill the space between the mounting bolts and the spring as shown on the picture and select the thickness to leave about 1/16 inch clearance before the bolts are tightened , that will give you the right amount of grip when you tighten the bolts against the spacers. In other words the bolts holding the U-channel bracket are always tight, it’s the total thickness of the spacers that controls the grip. To position the gear on the fuselage use the existing hole for the tension strap that goes between the strut brackets as a location for the rear bolt and just go forward from there. For best clarity The pictures show either the plane and mounting hardware but no gear in place or the gear with mounting hardware but without the plane.