Tires Tire Sizes & Ground Clearance

[Engine66]

Need some help understanding the tire sizes listed for the 4x20 series tractors and the ground clearance. I'm considering a JD 4320 and need to know what the tire sizes mean and ground clearance for the JD4320. The JD site does not give ground clearance specs. Ground clearance is an issue with my property due to some ledge areas...can some one help explain how to determine tire specs to size/height? Thanks for any help...

 

[sunnyside360]

Here is the online Operator's Manual. It may be buried in there, but if not the JD dealer has this info. I had the same concern prior to purchasing my 3720 and the dealer gave me the info.

OMLVU17927_J5