i took the bolts out that held the grader blade on the back blade and then cut a piece of 3/8 the length of the back blade and welded the re bar rods every 1/2-3/4 inch apart.then drill the holes to match back blade and bolted it on back blade.i hope i made it clear if not get back to me.Ron i did have some bend just welded new ones on.it worked better then i expected.