got both blades finished and installed, drilled the 5/8" Grade 8 mounting bolts for cotter retention pins and installed them both..hopefully this will last the next brushy go-round..one of the original metric blade mounting bolts had stripped threads..great time to replace them with the Grade 8s. Somewhat complex but easy project completed in time for turkey day..Happy Thanksgiving

[Linked Image from kuhnbros.com]