I have had this sitting around for some time now. I don't know which model it came off of. The shaft is about 5-1/2" in length. The pulley is good with no chips. The u-joint bearing has a little wiggle in it so it may need a new cross and bearing soon but the yokes appear to be tight. There is slop in the driven gear where it looks like a pin retains it to the output (pulley) shaft. It is pretty sloppy there. Gears are rusty. I believe it is a parts unit. Price is $10 + shipping.