Here's a good transmission wheel drive axle sprocket that came off a 1996 MTD 524 snowblower.  This assembly fits many other MTD and Craftsman models, so please check your applications. See pic 10 for model id.  This 6 5/8" x 3/4" gear still worked well on the blower. It engaged the counter shaft well.  The gear shows normal wear, with some scratching or staining common to these--but not much!  Most of these have extreme wear, broken or cracked teeth, and are brutally rusted. It's so nice to be able to slide the nice hub onto the axle easily.  Better yet, if you need to clean and lube the axle and sprocket--it will slide off easily--especially with a with a lubed hub!  This sprocket will position solidly onto the axle with your key.  This is a great unit for a spare as well.  These are getting harder to find in working condition.  Please thoroughly clean and lube prior to use.  Look for more good snowblower parts in my other auctions.  Please look at the pictures.  Ask any questions that you might have.  Paypal payment due within 48 hrs of auction ending.  Securely packaged and quickly shipped.  Thanks for looking.