Swing mount pivotally supporting width gauge from vehicle

In combination with a vehicle to be used in pulling wide trailing structures, a width gauge comprising an upstanding mount frame including remote horizontally spaced inner base and outer free marginal portions, a central forward portion of said vehicle including mounting means mounting said frame at said base marginal portion thereof for oscillation of said frame relative to said vehicle about a first upstanding axis between positions with said free marginal portion disposed adjacent and facing outwardly of opposite sides of said vehicle, an elongated horizontal arm having an inner base end and an outer free end, said base end of said arm and free marginal portion of said frame including first coacting means pivotally supporting an upper portion of said base end from an upper portion of said free marginal portion to define an upstanding upper pivot connection, said free marginal portion including first and second lower mounting portions spaced horizontally apart on opposite sides of the medial plane of said frame and inwardly of said first coacting means in the direction of said inner base marginal portion, said base end portion including first and second lower support portions spaced horizontally apart on opposite sides of said arm, said first mounting and support portions and said second mounting and support portions defining releasably and alternately engageable means defining first and second upstanding lower pivot connections, respectively, on opposite sides of said arm and frame, said first coacting means and said lower mounting and support portions collectively defining a shiftable upstanding axis to be canted between positions alternately aligning said first coacting means with said first and second lower pivot connections to respectively define oppositely inclined axes about which said arm may be oppositely swung relative to said frame from a horizontal center position projecting outwardly from said free marginal portion toward rearwardly and upwardly inclined positions extending along said opposite sides of said vehicle, when said free marginal portion of said frame is disposed at said opposite sides of said vehicle.