In order to level my mower deck, I need to have one yoke bolt tightened 1/2-in shorter than the other. (This is measured from the bolt hole on the mule to the hook hole on the deck bracket.) To be sure my measurements are accurate, I lay a sheet of 3/4" plywood on a flat driveway to minimize any irregularities in the concrete and use the JD blade measuring gauge. The end result is my lawns are as even as a carpet, so I know it's set right.
Has anyone seen this problem with their mower? It complicates the basic adjustment a little, but the main problem is when removing/mounting the deck it pulls cockeyed and requires a lot of pryiing and fiddling to work the hooks into the deck brackets. I can't see any twists or anomalies in the deck, mule, plate, or frame of the 318.