Gil, I don't run a snow blower but the box mounts on top of the fuel tank between the seat and SMW sign. I can't see it interfering with anything that the standard sign would not.
And Chris I don't think you could store a very big chain in the box.
The tool box was made by a company called SpeeCo. They are sold 'online only' at Tractor Supply, Orschelin, and Rural King. Well mostly online. I bought mine off the shelf at a Rural King in Clarksville Tennessee. Wife and I were on a shopping trip (yeah, thought those ended when the girls got married) to Nashville and I stopped there. Wife didn't really want to go in but ended up buying some scarfs and Mini-Moonpies. So she was happy and "wouldn't mind going back and looking around when we had more time".
The boxes are 6 1/2" wide, 5 1/4" tall, and either 16" or 20" long. The 20" will not fit where I put mine without covering the fuel filler. So I got the 16" and it fits perfect.
It appears to be completely water proof from above. Rain will not get in it. They do not have a removable tray in them. They come in red, black, or green. At the store they only had red so that is what I got. I am ordering two 20" to mount on either side of my tandem axle trailer to store straps and whatever in. I think I will mount one on each fender.
The boxes come with mounting hardware but the 20" apparently has a different mounting method than the 16". Mine had two L-shaped brackets, two flat brackers and enough bolts, washers, and nuts to use them all. The box has twenty or more punched holes in the back and bottom. You can see these in picture #4. You take a punch and knock them out just like on an electrical junction box.
I loosened the nut on the top of the fuel tank that holds part of the SMV sign on and put one of the L-brackets there, then attached it to the back of the box as seen in picture #4. Then I loosened the bolt that appears to be holding the right side of the fuel tank to the tractor and put the other L-bracket behind it, seen from the front in picture #3 and the back in picture #1, secured the tool box and that's it. Took more time to open the box and get the tools out than it did to mount it. Looking at my pictures got me thinking and I think I will take the bolts out and Lock-Tite them later.
The online prices for the 16" box is $39.99 from Tractor Supply and Orschelin. Rural King in $24.99 with free shipping if you order over $49. The 20" boxes are also $39.99 from Tractor Supply and $29.99 from Rural King.
The next step in pimping out my CK20 is to order the left side step from Michigan Iron and Equipment for $79. This is needed to make it easier for my wife to get on the tractor. It has nothing to do with my age and stiffness.
RSKY