Print DR 250 only states "1950 Max" cross barlength of rod and holes to fit DR 237 pins "to fit assembly". Mine measures bar at 72 5/8 inches with hole centers at 69 5/8 inches.
To firm and minor adjust Stu made two 1.75" long wood dowel inserts with through holes for the pins and slides the dowels inside the cross bar ends and uses a screw to make the dowles firm. Reduces play and wear.
Terry
