First post , here goes . I need to replace the rear tires and have a dilema . Have owned tractor since new , rear tires are 12.4x24 on a 10"x24rim. 12.4 calls for 11"x24 rim. the manual say's L2550 should have 11.2 on 10"x24 rim . So did they screw up at the dealer and put 12.4's on instead of 11.2's or does it not matter , since it's been working that way for the last 20+ years ? Which size should I go with for the new ones ? Thanks