11 material differences · fewer than 12
Tractor oneJ.I. Case 7701969–1973No measured PTO figureTractor twoLamborghini R-603 (DT)1973–1982No measured PTO figure
Which should you choose?
Read our verdict on the 770 and the R-603 (DT) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | 770 | R-603 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 56.2 hp | 55.3 hp | — |
| Engine declared | CASE A 267 | LAMBORGHINI FL-1003/2 | differs |
| Displacement declared | — | 2.83 L | — |
| Maximum torque declared | — | 128 lb·ft · 173 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | — | Pedal-operated dry LuK double clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 16.0 gpm · 60.6 L/min | 4.9 gpm · 18.5 L/min | +228% 770 |
| Rear PTO speeds declared | 540/1000 rpm | 540 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 9,050 lb · 4,105 kg | 4,189 lb · 1,900 kg | +116% 770 |
| Wheelbase declared | 101.0 in · 2,565 mm | 78.0 in · 1,980 mm | +30% 770 |
| Length declared | 153.0 in · 3,886 mm | 131.9 in · 3,350 mm | +16% 770 |
| Width declared | 88.0 in · 2,235 mm | 68.5–96.1 in · 1,740–2,440 mm | differs |
| Ground clearance declared | 15.0 in · 381 mm | 18.1 in · 460 mm | +21% R-603 (DT) |
| Turning radius, braked declared | 11.4 ft · 3.48 m | 10.5 ft · 3.20 m | +9% 770 |
| Fuel tank declared | 200.0 qt · 189.3 L | 63.4 qt · 60.0 L | +216% 770 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
J.I. Case 770 sources
- Source: Traktorenlexikon, “Case 770”
Lamborghini R-603 (DT) sources
- Source: Traktorenlexikon, “Lamborghini R 603 DT”