Four-wheel drive used tractors offer superior traction in muddy fields and on steep hillsides compared to two-wheel drive alternatives. Before finalizing a purchase, buyers must engage the front-wheel drive mechanism to verify smooth power delivery to the front differential. Inspecting the universal joints and planetary hubs for leaks ensures the front driveline remains in robust work... https://www.chiguu.com/articles/top-10-most-iconic-old-tractor-models-in-history