Haven't bought any yet looking for suggestions. I think ring chains like on a skidder will the the ultimate on the back but would have to go a little easy on things.Something less aggressive would help but tend to plug.V bars on the front would be as savage as I'd dare go. There is a lot of weigh on the front when backing up with a heaping bucket of mud.If there isn't a backhoe on your L35 put a 2000 lb counterweight.