A tubular member and flange combination includes a tubular member having a buckled section proximate an end of the tubular member. A flange is penetrated by an end of the tubular member where an end section of the tubular member is bent over the flange such that the flange is axially retained by the buckled section and the bent end section of the tubular member. A method of forming the tubular member and flange combination includes buckling the tubular member at a location proximate an end of the tubular member forming a buckled section, placing the flange over the tubular member end section such that the tubular member end section penetrates an opening of the flange, and bending an end section of the tubular member to extend over the flange, such that the flange is axially retained by the buckled section and the bent end section of the tubular member.

An inner joint member has, on an opening portion side of an outer joint member, a holding portion that has a bottomed concave shape into which a sleeve for supporting a boot covering the opening portion is press-fitted, and a relief portion that is provided on part of a convex outer spherical surface at the opening portion side, and that has a smaller diameter than an outer diameter of the convex outer spherical surface corresponding to a press-fitting range of the holding portion into which the sleeve is press-fitted.