| John Deere 8640 Tires | |
| Ag front | 18.4-34 | 
| Ag rear | 18.4-34 | 
| Dimensions | |
| Wheelbase | 125 inches 317 cm | 
| Length | 223.5 inches 567 cm | 
| Operating weight | 28,270 lbs 12823 kg | 
| Ground clearance | 18.4 inches 46 cm | 
| Front axle | Rack-and-pinion: 3.937 by 95.8 inches 99 by 2433 mm | 
| Front axle | Rack-and-pinion: 3.937 by 118.4 inches 99 by 3007 mm | 
| Rack-and-pinion rear axle | 3.937 by 95.8 inches 99 by 2433 mm | 
| Rack-and-pinion rear axle | 3.937 by 118.4 inches 99 by 3007 mm | 
| Front tread | 63 to 130 inches 160 to 330 cm | 
| Rear tread | 63 to 130 inches 160 to 330 cm | 
| John Deere 8640 Height | |
| Hood | 87.1 inches 221 cm | 
| Cab | 126.6 inches 321 cm | 
| Exhaust | 134.5 inches 341 cm | 
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on June 18, 2025 |