THIS TALL TRANNY COVER IS MADE TO GO IN THE STOCK LOCATION. 18 GA. STEEL, WELDED OR BOLTED IN. IT IS 4" TALLER ON THE FRONT EDGE AND GOES TO THE STOCK SHAPE ON THE REAR EDGE. IT COMES IN 3 PIECES, SO YOU CAN TRIM THE BOTTOM TO GET THE HEIGHT YOU NEED. SOME TRIMMING OF THE STOCK FLOOR IS NEEDED AND DIRECT SHEETMETAL RECOMMENDS WELDING IT IN PLACE.