i have a jd x304 2015 problem is after leveling deck at all 3 points to 2 1/2 in my right side of deck scalp wheel is touching the ground i leveled the deck with scalp wheels off, the left side wheel is off ground about 1/4 in at this setting so it seems deck might be sagging to right side i checked tire pressure and and leveled deck with wheels scalp wheels off and checked to see if any pins missing which seems all there. any ideas or suggestions what problem could be would be appreciated