An apparatus adapted for vehicle frame and chassis repair having a vehicle bed with horizontal portions for fixedly anchoring a damaged vehicle preparatory to repair and particularly straightening of the vehicle. The bed tilts toward the ground for mounting and removal of the vehicle. A plurality of pull tower assemblies are movably mounted with respect to the bed. Each pull tower assembly includes an upright tower column and a pivot arm connected to the bed. A power head assembly rotatably mounted on the top of the column includes a frame and a hydraulic actuator with a first portion fixed to the frame and a second portion horizontally movable with respect to the frame. A flexible tension member has a first end connected to the frame and a second end connectable to the vehicle at a remote location for exertion of a pulling force. A portion of the flexible tension member is trained over guide means connected to the second portion of the hydraulic actuator whereby movement of the second portion of the hydraulic actuator causes a pull to be exerted on the flexible tension element and transmitted to the vehicle. The pull tower column is mounted on the movable end of the pivot arm. The fixed end of the pivot arm is pivotally assembled to a tower pivot mount secured to the bed assembly. Means are provided for locking the tower pivot arm in place with respect to the bed assembly.