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Quick change gear shafts
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Bob C IL View Drop Down
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Joined: 25 Sep 2009
Location: Paris IL
Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Topic: Quick change gear shafts
    Posted: 12 Jan 2016 at 7:17pm
Where do ya pick up splined shaft for quick change gears?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2016 at 10:15pm
Which size?    1.250" x 10 splines ??
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Bob C IL View Drop Down
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Joined: 25 Sep 2009
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 6:42am
Yes for winters gears
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 7:22am
Gear Headquarters in Kansas City, Kansas can make you what you want.....John Lewman at 913-831-1700....I thought one could just buy a length of splined shafting ready to go, but I guess not. You'll want it made of 4140 or 8620 steel. I'm a little concerned that your choice in gears might not be strong enough for the torque you're going to run thru them.?? Gears from SCS or Pro-Fab I know are strong enough.
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Bob C IL View Drop Down
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Joined: 25 Sep 2009
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 8:54am
Yes scs or profab. I was looking at a winters chart when I wrote that.
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 8:58am
Need a pair of 1to 1 and . 8 to 1
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 10:57am
I'd ask SCS or ProFab first if they'd sell you some shafting. If not, call Gear Headquarters. Winters gears are for stock car rear axles and I don't believe are what you want.
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 1:33pm
Going to try to build my own overdrive box to put in my Tourque tube either work or it won't
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DrAllis View Drop Down
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Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 1:54pm
The overdrive ratio already inside the torque tube isn't good enough?? or too fast?? or too slow??
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 2:39pm
27.88 4 intermediate 22.15 4 high. Pretty good jump
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2016 at 2:55pm
I have run just ring and pinion for a couple years and is a little slow and burnnin the tires at the end!
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DrAllis View Drop Down
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Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jan 2016 at 6:20pm
I'm thinking you need a .9 instead of .8 ....
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jan 2016 at 6:30pm
Thanks for the help Doc! I get it drawled up and measures I'll post it
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DrAllis View Drop Down
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Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jan 2016 at 6:42pm
I say that because the OEM is a 20% speed-up from direct to over-drive. For example 15.5 MPH to 19.3 MPH is 19.7%, so lets call it 20% even. I'd think you'd want to be half-way between there with a 10% increase and that's why I feel .9 to 1 over-drive would give you what you want.
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Bob C IL View Drop Down
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Joined: 25 Sep 2009
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 14 Jan 2016 at 6:56pm
I figure 25 to 1 and that had me at .899 when you do old math that I didn't do I should have rounded up at .9. I'm hoping to be able to change gear sets thru pd valve hole.
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2016 at 9:27pm
How are you going to split shaft to get top gear off shaft? 
Let me sell you one of my gear boxes and you just have to split it at front of trans. to change Ro.       MACK
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21414 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2016 at 6:53am
His tractor is a 7000. Might take some changes for your gearbox to fit ??
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Bob C IL View Drop Down
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Points: 369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob C IL Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2016 at 5:34pm
Yep Mack mines a 7000!! Leave it to me to build a freak. But I can say no rear end trouble so far.
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