My newly-rebuilt 900 has 4-link v-bar chains. The chains are old, and the v-bars are just a bar; the "V" is smashed flat except on two cross chains I had to replace. When I try to back up the driveway when it's wet (or snowy), and I have the plow or blower mounted, the tractor generally spins the wheels and I get nowhere. I have the tires loaded with windshield washer fluid, but no additional rear weight. I can go up forward with no problem.
Will I be better served by adding more weight to the rear of the tractor, or buying two-link or European diamond-style chains? Do I need the v-bars, or can I get by with standard chains?
I've attached a couple of pictures so you can get an idea of the "lay of the land".