https://www.tractor-specifications.com/tractors/rock-island/f-18-35 2026-04-08T02:25:00.765Z monthly 0.7 https://www.tractor-specifications.com/tractors/rock-island/g-15-25 2026-04-08T02:25:00.765Z monthly 0.7 https://www.tractor-specifications.com/tractors/rock-island/g2-15-25 2026-04-08T02:25:00.765Z monthly 0.7