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D17/170/175 Final Drives
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KevinON View Drop Down
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Joined: 07 Dec 2009
Location: Schomberg, ON
Points: 805 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KevinON Quote  Post ReplyReply Direct Link To This Post Topic: D17/170/175 Final Drives
    Posted: 5 hours 31 minutes ago at 2:36pm
Just curious, was thinking of changing the final drives on my 185 LLSS build to the faster D17/170/175 final drives.  I understand that they are not as wide.  Would they be strong enough, is my question?  Thoughts for a snowy, wintery day like today....lol.
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tbran View Drop Down
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Joined: 14 Sep 2009
Location: Paris Tn
Points: 3561 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: 5 hours 20 minutes ago at 2:47pm
70251775 is the same on 180/185/175  70237058 is the other pinion D17/170
 and 70247872 / 70237059  are the bull gears for 185 / D17
When told "it's not the money,it's the principle", remember, it's always the money..
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KevinON View Drop Down
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Joined: 07 Dec 2009
Location: Schomberg, ON
Points: 805 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KevinON Quote  Post ReplyReply Direct Link To This Post Posted: 5 hours 11 minutes ago at 2:56pm
So by that I should be changing the pinion shaft?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22363 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 30 minutes ago at 6:37pm
175-180-185 final drives are identical and are the widest/strongest final drives at 5.85 to 1 ratio. D-17 S3 and S4 and 170's are all the same strength/width and 5.43 to 1 ratio, for a 7% speed-up. Change the whole axle/final drive assembly !! How much HP they will take ???  I know of one tractor that has run one season at probably 350-400 HP without issues. Keeping under 7,000 lbs will help. The lighter the better. The less bar height on your tires is also good. LLSS class??  I wouldn't even think about it.
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KevinON View Drop Down
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Joined: 07 Dec 2009
Location: Schomberg, ON
Points: 805 		Post Options Post Options   Thanks (0) Thanks(0)   Quote KevinON Quote  Post ReplyReply Direct Link To This Post Posted: 21 minutes ago at 7:46pm
Thanks Dr. I will stick with the 185 finals then.
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