Rob N,
The 2B tiller with the 5/8 pully on a Wideframe/Quietline. I have that same setup on my 1450, and well, it doesn't really work. I bought a 782 with a blown engine (imagine that) that everything else was decent, and it came with a tiller, gearbox, mule drive and belt. I bought the 1/2 belt for a wideframe and put the gearbox on the back, as is. When I went to use it I put the 782's mule drive on and went to put the belt on, and I had a devil of a time, and when I finally got it on, it went back up front and found the belt rubbing on the springs/bar in the mule drive. The wideframe and 82 series mule drives are designed a bit differently. So I put the mule drive on for the mower, with the angled pulleys, and put the belt back on. With it tightened correctly, when I put the tiller in the ground, instead if it muscleing thru the ground and loading the engine, the belt slips on the bottom pulley of the gearbox. I can lift the tiller back up and get it spinning with out a problem, but I cannot let it dig in and really chew up the soil. I am looking for a replacement pulley for the gearbox, so that I can use the tiller correctly because the bottom pulley is the only difference. I plan on modifying, or replacing the mule drive out of the other "stuff" we have, but that is not 100% necessary.