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Farmall & IHC Tractors Discussion Forum
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F-20 Road Gear Installation

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Bo Bradshaw

05-11-2008 19:05:59




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In attempting to install my newly purchased factory road gear, I cannot determine which end of the sleeve that fits over the top spindle should be nearest the transmission. Also, how do you remove that top shaft? Mine needs a little filing done to it to make the sleeve fit and after removing the cotter pin, I can"t stop the shaft from turning long enough to get the big nut off which I assume will let me get the shaft off. Also, the road gear backer plate hits a transmission top fill check plug. Do I grind off the plug or put a differnt style in? Bo

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Nebraska Cowman

05-12-2008 04:22:21




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 Re: F-20 Road Gear Installation in reply to Bo Bradshaw, 05-11-2008 19:05:59  
If you rap the nut sharply with a hammer and chisel it should spin right off. I don't remember the sequence for removing the shaft. I'm thinking you have to remove the pinion shafts & differential and go out the back. Way too much work. Get a dremil tool and dress it up in place. Yeah, I'd look for a flush plug. Can't help you on the direction of the splined piece. Every one is different. There must have been 50 companies making those drives and I never see 2 alike.

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BIG BORE 20

05-11-2008 22:42:25




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 Re: F-20 Road Gear Installation in reply to Bo Bradshaw, 05-11-2008 19:05:59  
BO,
I have installed after market roadgears and overdrives, But it has been close to 40 years ago. There is a after market roadgear on ebay 230251851907 he is calling it a overdrive but it's not. Is this one like the one you have? The overdrives don't have a gear for the top shaft. A factory roadgear is inside the main transmission which will be a son of a gun to put in if that's what you have, There is a shaft that will have to be changed in there to get the gear to clear it. but if yours is a after market it bolts on the front of the trans. and if memory serves me you don't remove the big nut just mount your box after pulling off the bearing retainer covers, put the small gear on the double spline stub sleeve with the flange to the front of the tractor slide it on to the top stub spline of trans. next put your shift forks and shaft in. The big gear will mount on the yoke after the yoke is pushed through the front cover plate. Then push that assembly on to the main trans. shaft. Bolt the front cover on and you will need to cut the guard down that covers the u joint to make it fit. There should be a bracket that bolts to the top of the trans. to hold the roadgear lever up when its engaged. All of this can be done in about an hour. I hope this helps you a little, like I said I'm running on memory from over 40 years ago.

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garytomaszewski

05-11-2008 20:15:57




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 Re: F-20 Road Gear Installation in reply to Bo Bradshaw, 05-11-2008 19:05:59  
Help me out ; What's a factory road gear? My 3 F20's all have a different hi-speed set up, one is third gear replaced with Hi-speed, one is Beheln(sp?) which gives only road gear, and one is a gear box to double all the existng gears.



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Bo Bradshaw

05-12-2008 20:15:51




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 Re: F-20 Road Gear Installation in reply to garytomaszewski, 05-11-2008 20:15:57  
Gary, The road gear I'm referring to is a bolt on unit that attaches to the tranny between it and the engine. The one I have is an IH device, but many companies made them . Thanks to you guys who answered. That was very helpful info. Bo



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garytomaszewski

05-13-2008 07:56:23




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 Re: F-20 Road Gear Installation in reply to Bo Bradshaw, 05-12-2008 20:15:51  
Bo, thanks, I never knew IH made their own.



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