Posted by Wardner on April 21, 2010 at 08:02:58 from (207.69.137.26):
In Reply to: Front wheel assist posted by PORKY B. on April 20, 2010 at 13:01:12:
mkirsch said: (quoted from post at 18:24:28 04/21/10) The difficult part would be getting the gear ratios correct.
That's just math and requires no heavy lifting or significant crainial exercise. You could lay out the fixed values and plug in the variables on a spreadsheet. Just have to be careful to slightly overspeed the front axle and make sure you are using the loaded radius of the front and rear tires.
My 660 Elwood turns tighter than my standard wheelbase pickup.
There are other ways to get FWA. Pull power from one bull pinion shaft and install a locking rear drive. Or you could do it like the Ford County tractors built in England. Run two driveshafts from the rear up to the front right-angle gearboxes/spindles. Or cobble up two H's and build an articulated H. Or do it like that tri-axle JD 720.
This post was edited by Wardner at 08:13:33 04/21/10.
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