Re: Stupid idea for roading a 450 IHC

Posted by Hugh MacKay on February 19, 2004 at 03:56:33 from (216.208.58.158):

In Reply to: Stupid idea for roading a 450 IHC posted by Seifdoggy2 on February 18, 2004 at 20:13:03:

Steven is right, it will not gain you a whole lot without spending some big bucks. Years ago in my hometown they used to build what they called power trailers, for the old transmission driven pto tractors. The average dual wheel 5 ton freight truck is what they used, complete with 5 speed transmission. Each time you shifted gears on tractor you also shifted the truck transmission. Of course they never got the ratio exactly on for each gear, but most were really only concerned with 1st and 2nd for getting through that tough spot. These trailers were quite heavy thus guys thought by using trailer rear end with tractor in neutral they would be great for roading. To the surprise of many they actually went slower, plus trailer would spin out even on the slightest hills. I can remember seeing Farmall Hs and Ms with 5 cords of wood they pulled from the bush, on bulldozed trails. Most of these trailers got demolished by 300s and 400s with live pto and guys just a bit too quick on the pto lever.

I remember pulling one of these with 300. Old guy had built it for his Deere MT. Had retired and sold his farm and tractor, but not the trailer. He wanted me to pull his trailer to bush for his firewood. I told him he better come along and operate this transmission, as I didn't want to bust it up on him. Ground was quite firm and I didn't think we even needed trailer in gear but he insisted. I started ahead and it pulled very hard for 8 to 10 feet. That was the end of that one as the old guy had put the trailer in reverse. I've forgotten whether we striped transmission or rear end on trailer.

The reason I tell you all of this is you could probably gain the speeds you want by using a pickup rear end, which have faster ratios than big trucks and with with 28 or 30 inch tractor wheels. Based on my experience I don't think the pickup rear end will take it. Torque at low RPM is the problem.

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