an alignment tool for adjusting the position of a first body relative to aecond body in a severely limited working space . the tool rigidly attaches to the first body and operates through a fork against a pin which is rigidly fixed to the second body . the fork is driven laterally by a lead screw which is driven by a perpendicular input shaft through a pair of 45 ° bevel gears . a conventional socket wrench type tool supplies input torque .