Craftsman 20 Hp 42" Deck Lawn Tractor "left side blade" Questions

...left side blade on my YTH21K46 is vibrating and is chopping up the lawn, it seems to be very loose when I inspected it compared to the left side blade. Is this a bad bearing or bushing problem? Could ...

...blade has one of its cutting edges at or near the right side center of the deck. Do the opposite with the left. Measure to the blades from the level ground, not to the deck. Try leveling that way. ...

...left side. this causes the left blade to ride at an angle to the right blade - there is a tool to correct this, but not all shops have it - sometimes you can remove the deck, flip it over and wallop ...

...and balanced, and both blades turn perfectly. What could this possibly be ? At wits end !! Left blade is on backwards (liftng edge is contacting grass). Try reversing the blade on the left

...the left one scalps on one side and leaves a long rough cut on the left side. We put on new blades, but that didn't help. What else could be wrong? check if blades are even ! other than that ...

left side blade cuts about an inch lower than right side , the left 21" when cutting is about an inch lower than the right 21", looks terrible, checked tire pressure and that was not the problem ...

...left side. By looking at the deck, it appears to be uneven. I am struggling with being able to raise the left side of the deck. I've only had luck removeing the deck, turn it upside down. Measure ...

...left side cuts great, but not the right. The right side seems to beat the grass into submission. If I back up over the same path I just tried to cut, it works. I'm stuck either cutting 19" at a ...

...left side is the issue. It is cutting about 1 inch deeper than the right. When I look under the mower deck the blade on the left side is closer to the ground than the right side. The mower deck is ...

...left blade makes the noise, the grass on that side does not get cut. Upon intial assessment I noticed that the blade and the pulley are not moving as one. I think either the bolt holding the left ...