Hello all, not much experience here but just can't seem to get the hang of this. I'm trying to dig a drainage ditch for a piece of ground that floods from a spring which just spreads all around the field. I got a creek not far from the spring and just need to connect the two. I have a CASE 1490 with a 66 front end loader on it. Rear tires filled. I was not wanting to dig straight down the line because it would be too wide a ditch. So I marked out the line and set the bucket parallel to the line and angled the bucket down into the earth. It will dig but my main problem is the big filled rear tires are just tearing up the ground. I need to rear up the tractor to get a bite in the dirt but this digs in those rear tires and it's just causing too much unwanted damage. Is it possible to do with this tractor or am I just literally spinning my wheels? Any tricks or tips appreciated?