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Post by Sticks on Feb 12, 2013 8:03:26 GMT -6
I'm at home today and don't have any drivers here to measure up!  Trying to figure out a couple of new gearing options. What is the diameter difference between the 9 & 10 tooth front drivers for the 72/73 Nitros? |
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Post by ruppluver on Feb 12, 2013 9:10:35 GMT -6
Brandts repopped front 10 tooth is 7 1/8" outside diameter,6" at bottom of teeth,hence the 6" idler wheel. All my 9 tooth are buried in boxes. 5 1/2"at base of teeth,because the 9 tooth takes a 5 1/2" idler wheel.
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Post by snosnake on Feb 12, 2013 9:24:24 GMT -6
1/2 an inch. If you use the 10 tooth you will need to go with the 6 inch idler wheel. I am starting to make the mold for them this week.
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Post by Sticks on Feb 12, 2013 20:56:58 GMT -6
This doesn't sound right.  I thought the 10 tooth were like 6.125 and 9 were 6.000 ? I'll have to measure some up when I get to the shop this week |
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Post by kluth on Feb 13, 2013 7:59:43 GMT -6
The ten tooth driver is 6". A standard nine tooth driver is 5 1/2"  Here's a set of re-lined 5 1/2" idlers over-layed onto the nine and ten tooth drivers.  |
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Post by Sticks on Feb 13, 2013 8:24:17 GMT -6
Thanks Guy's!  |
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Post by magnumal on Feb 13, 2013 9:34:01 GMT -6
Ive never done this before so give me the dummy version from the bad one to the good one !! What would I do to replace in 72 dual drive ? The only thing I did was put 74 drivers on 72 shaft for a polaris track . Just get them in place and drill hole for bolts !!
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Post by Deleted on Feb 13, 2013 10:33:32 GMT -6
Ive never done this before so give me the dummy version from the bad one to the good one !! What would I do to replace in 72 dual drive ? The only thing I did was put 74 drivers on 72 shaft for a polaris track . Just get them in place and drill hole for bolts !! ok give me the dummy version! all i gotta do is get a 72 drive shaft put on 74 drivers then i can use a polaris track? and suspension? do i cut the flanges off for the 72 rupp driver? what year suspension? thanks |
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Post by ruppluver on Feb 13, 2013 12:47:32 GMT -6
Yes,cut flanges off,use green drivers from a 74 Nitro II.
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Post by magnumal on Feb 13, 2013 13:35:00 GMT -6
You can use 74 suspension by moving wheels that go up on track !  When you use the 74 suspension you have to remove front plate and you should angle cut hyfax because the track will bounce and hyfax will catch in holes I Didn't and learned the hard way Istill don't have them cut but I don't have plate on it ! |
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Post by Deleted on Feb 13, 2013 16:14:03 GMT -6
thanks guys very cool! i think i know what my next project is ;D
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