I have a Husqvarna LGT2554 I purchased in fall 2010. I use it to mow about 2.5 acres in the summer, all flat ground and then plow my driveway (150') in the winter in Lower MI. My tractor has a Tuff Torq K46AW Hydrostatic Transmission. I just had my Axle Sheer off when mowing. I have approx 320 hours on the tractor. All my mechanic friends are in utter disbelief as to how this could possibly happen. The only thing I can chalk it up to faulty craftsmanship on the behalf of Tuff Torq!!! This year, it did seem to run a little slower, but overall was OK until this happened. I have ready multiple of posts online regarding similiar issues with the Tuff Torq Transmssions. I see there is a recall on certain model Husqvarna's, I am hoping my transamission will fall under that umbrella. Cost estimate to replace is around $1,000. But still cheaper than having to buy new along with a new snow thrower & bagger.