YTH21K46-(96045002901)(2011 ((96045002901)(2011-05)) Husqvarna Lawn Mower

The drive belt literally goes from the back of the tractor to the front. The mower must be removed, helps to have the tractor up on blocks to give adequate room for work on underside. Belt goes easiest on the engine first, then thread to the rear, install on the rear, (driven pulley) then on the idlers. Check to assure that it functions properly before re-installing the mower. If you have the owners manual, there is a diagram, (check your orientation, it is not clear if it is a birdseye or under tractor view) which offered some help. When replacing belt, check the transaxle front mount, mine was broken which is why the belt came off in the first place. Repairing the mount was quite a job in itself, but now works fine.

Just described it.

Shimmed the wheels out on axle.. No more slop.