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Read articles →This one's specifically about tire and wheel choices on an owner's 2017 8400R, not a general tractor overview. It covers the new Firestone CIF tires and duals fitted, tire sizing/aspect-ratio codes (group 43/44/48/49), front hub differences versus smaller R-series models, wheel spacing looks, and the practical reason for the change: getting under 11 feet wide to fit narrow doorways. Best for current 8400R owners weighing tire and dual setups.
Appears to be an owner-operator sharing detailed, hands-on knowledge from maintaining their own 8400R tractor.