The LuK LFW142 is a single mass flywheel designed for Ford Aerostar 1986-1987 and Ranger 1983-1994. It has a ring gear thickness of 9.75mm, a number of teeth in the starter ring gear of 132, and a dowel hole diameter of 7.85mm. The flywheel friction surface outer diameter is 240mm, with a crank hole diameter of 10.45mm and a thickness of 30mm. The centering diameter/dowel hole is 250mm, and the crank to friction surface distance is 27.85mm. The I.D. for the pilot is 31.7mm, and it has a bolt hole pattern of 5 and a dowel hole pattern of 5. The overall casting O.D. is 275.3mm, with a flange thickness of 16.27mm and a ring gear mounting O.D. of 258.3mm. The flywheel friction surface inner diameter is 144.75mm, and it is made in China.