Recent content by 6930 deere

hi guys have a john deere 6930 50k 2012 model autoquad,which came with 540/65/28 and 650/65/38 goodyear tyres,tyres replaced at 5600 hours and downsized a little to 480/70/28 and 580/70/38 klebers.problem is at 50k im getting an awful road noise in the form of a droneing noise.(never had noise...