Hi new to the forum. I have a bx 24 with a Rck60b-23bx mid mount mower. The mower deck gearbox requires tear down and rebuild after a rock was wedged under mower and destroyed the drive spindle/shaft from gearbox to blade. The problem I have encountered is there is only ONE access panel on the top of the gearbox. When I look for YouTube video and in the Kubota shop manual the gearbox should have TWO access panels to allow for spindle removal in both directions. As a result I cannot figure out how to remove the pto spindle. Any and all guidance is appreciated. Thank you.