ALLIS-CHALMERS Modell-WD vs J.I. Case Modell-D

9 material differences · fewer than 12

Tractor one

ALLIS-CHALMERS Modell-WD

1948–1953

No measured PTO figure

Tractor two

J.I. Case Modell-D

1939–1953

No measured PTO figure

Which should you choose?

We will not advise between these two machines, because their unladen weight differs by more than 25% (107%). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.

Field by field

9 material differences · 1 fields identical or within 5%, which is not counted as material

ALLIS-CHALMERS Modell-WD and J.I. Case Modell-D, field by field
Field	Modell-WD	Modell-D	Gap
Engine
Engine power, claimed claimed	30.2 hp	31.6 hp	—
Transmission
Top speed declared	9.9 mph · 16 km/h	11.0 mph · 17.7 km/h	+11% Modell-D
Clutch declared	Foot-operated spring-loaded dry Rockford single-disc clutch	Hand lever operated double disc clutch	differs
Hydraulics & hitch
Pump flow declared	1.2 gpm · 4.7 L/min	—	—
Rear PTO speeds declared	548 rpm	540 rpm	differs
Weight & dimensions
Unladen weight declared	3,389 lb · 1,537 kg	7,004 lb · 3,177 kg	+107% Modell-D
Wheelbase declared	88.1 in · 2,238 mm	66.4 in · 1,686 mm	+33% Modell-WD
Length declared	138.6 in · 3,521 mm	116.0 in · 2,946 mm	+20% Modell-WD
Width declared	56.0 in · 1,422 mm	61.5 in · 1,562 mm	+10% Modell-D
Height declared	68.0 in · 1,727 mm	49.5 in · 1,257 mm	+37% Modell-WD
Ground clearance declared	—	14.0 in · 356 mm	—
Turning radius, braked declared	8.2 ft · 2.50 m	—	—
Fuel tank declared	72.1 qt · 68.2 L	67.9 qt · 64.3 L	+6% Modell-WD

ALLIS-CHALMERS Modell-WD sources

Source

Source: Traktorenlexikon, “Allis-Chalmers WD”

J.I. Case Modell-D sources

Source

Source: Traktorenlexikon, “Case D”