I have it locked into 4WD, but the front wheels won't provide any traction in reverse. I keep getting stuck at the bale feeder when trying to back up. It seems like it does get traction on the front when I am going forward, although I can't tell for sure and how much.I know I have seen the front wheels spinning while going forward...but I can't tell if they are spinning from a stop (start up). Any ideas on what might be the problem? Yesterday, I retorqued the nut on the intermediate shaft where the slip clutch is located. The drive shaft to the front is spinning all the way to the front axle. Any advice would be great.