Bnorth
Active VIP Member
Thought I had found a good method and ordered a T3 shaft and drivers to put a 3" in my standard XM but now I'm concerned if it will fit. Anyone have any idea or tried it yet?
T3 Driveshaft in XM
- Thread starter Bnorth
- Start date
FranktheTank
Active VIP Member
The shafts were different? Thought only difference was the longer chain case and 7tooth drivers
- Thread starter
- #3
Bnorth
Active VIP Member
Shaft is the same, drivers are 7T.
FranktheTank
Active VIP Member
7tooth drivers you will be fine that's how guys have been getting away with it for the last few years without a drop and roll chain case. Might have to flatten some rivets but everything should work out for ya
pfi572
Active VIP Member
What's the shaft and drivers worth?
I have a shaft with 7 tooth avids if your interested?
I have a shaft with 7 tooth avids if your interested?
FranktheTank
Active VIP Member
what do you want for them pfi?
tex78
Active VIP Member
U don't need a 3 inch cheater
pfi572
Active VIP Member
$250.00 ? Shaft with drivers installed.
neilsleder
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Winter Brew
Active VIP Member
My guess is they couldn't gear it low enough to make their current clutching/belt last. I believe 8's will fit on the T3, just havnt tried it yet.
If the Doo 7tooth are any bigger diameter than the Avids, they won't work for putting a 3" on non T3. Anyone measure them yet?
I think 8 tooth drivers with less clearance would make the sled more eficient than 7 tooth. IMO. People don't realize there is space between the lugs.
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- #13
Bnorth
Active VIP Member
Do you know the diameter of the Avid 7t?
maxwell
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At least the skidoo 7tooth are round unlike the avids so they don't vibrate like crazy and Rob power
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- #15
Bnorth
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That's a huge part of why I want to do it this way.
Arma-Coat Finishes
Active member
According to ski-doo it was a weight saving decision. Yes an 8 tooth fits fine and it should have been there to begin with. So if you have a 2014 sled with a 3" might as well keep it as it really has no difference then a 15 the way it is set up.
maxwell
Active VIP Member
Except it has a 20mm drop which is more than the difference in driver diameter. Also has way more room to evacuate snow and more efficient drivers
oler1234
Active VIP Member
Agreed, I think the extra clearence for snow e-vac is irrelevant really. Pretty sure the big thing is the smaller driver diameter to maintain track approach angle. The gearing comment would also only be valid for the 174 version, but really with a 19/51 and 7% reduction in driver size(7th to 8th), your effective gear ration would be 2.87.
edit... I am more interested in seeing how there new brake rotor works out. I know I drilled mine to Swiss cheese and it don't stop near as fast.
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pfi572
Active VIP Member
IMO
19 tooth top gear is way to small and puts a huge strain on the chain with a 174x 3
I wrecked two chains with 20 tooth and went belt drive that ended the problem .
If you can't clutch a 2.52 ratio and 7 tooth drivers I think there is a problem?
2.87 is just stupid .
Again only IMO
19 tooth top gear is way to small and puts a huge strain on the chain with a 174x 3
I wrecked two chains with 20 tooth and went belt drive that ended the problem .
If you can't clutch a 2.52 ratio and 7 tooth drivers I think there is a problem?
2.87 is just stupid .
Again only IMO
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