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2wd to 4wd conversion

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joe

10-16-2002 20:06:49

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Has anyone ever converted an older 4000 series tractor over to 4wd using newer components of the 3cyl diesel 1975-1995? Since the front axle mount bolt patterns are the same, I was wondering about the centerline drive components in the rear end. I have never had a 4wd rearend apart, but I would imagine they take power off the "coupler" that attachs from the end of the trans. output shaft to the rear end pinion. Maybe? No?

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paul

10-17-2002 10:13:31

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Re: 2wd to 4wd conversion in reply to joe, 10-16-2002 20:06:49

If it would work, and your rear end problably isn't right but I don't know that for a fact, it would probably still be more expensive than selling what you have & buying a front wheel assist tractor.

--->Paul

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TomG

10-17-2002 03:47:19

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Re: 2wd to 4wd conversion in reply to joe, 10-16-2002 20:06:49

My 1710 takes the front drive from a rear differential ring gear. I imagine most designs are similar otherwise the gear reduction accomplished by the rear differential would have to be duplicated by a separate unit for the front drive train.

1710's came in either 2 or 4wd. The differential gears for the two models are the same but were designed for a 4wd take-off. However, the differential cases have different part numbers. A 4wd conversion still would be quite extensive. In addition to new differential cases and 4wd parts and a front drive train, the steering assemblies and who knows what else are different.

The main thing about 4wd is getting the gearing for the front and rear drives to an acceptable ratio given the tires sizes used. The likelihood of getting the gearing right isn't good unless the rear drive component that has the front drive take-off is matched with a front drive train from the same tractor or by finding tire sets that compensate for uncharacteristic front/rear gear ratios.

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