Abstract: A method and apparatus for determining the extent of damage to a vehicle body prior to its repair includes first and second means to be coupled with the vehicle body for holding a first string in spaced relationship to the body. First string means is coupled with the first and second string holding means and drawn taut. Third and fourth means adapted to be coupled with the vehicle body on the opposite side from the location of the first and second means is adapted to hold a second string in spaced relationship to the vehicle body. A second string means is drawn taut between the third and fourth holding means. Comparative measurements are then taken between the first string and the undamaged area of the vehicle body which corresponds to the damaged area on the opposite area. Second measurements are taken between the second string and the damaged area of the vehicle body and compared with the first measurements. The amount of damage to the body can then be determined by this comparison.

Abstract: A fixture assembly for use in conjunction with a vehicle frame straightening rack. The assembly is adjustable to accommodate any model of vehicle, adjustments being possible in both fore and aft as well as side to side directions and in height. An adjustable clamping fixture is incorporated into the assembly to hold the frame on the straightening rack. In use, the vehicle frame to be straightened is supported on the straightening rack. One side is aligned at the fixturing points provided in the vehicle frame by use of an alignment fixture at one end of an alignment beam. The opposite side is then similarly aligned at the opposing end of the alignment beam with a similar alignment fixture. A ruler is provided on the alignment beams to aid in the precision of placement of the alignment fixtures. Clamping fixtures are then attached and all the fixtures are locked in place. As the frame is then straightened the fixtures remain engaged with the frame and precise alignment is accomplished.