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building up a 93 tundra 2, need some track sprockets


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#1 chainsawguy

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Posted 28 September 2020 - 05:50 AM

hi guys, first post on here. lurking around on here motivated me to redo my beloved tundra 2. I use it for mostly hauling wood, trapping and fishing with the kids, etc. I've seen those sprockets made by b550 and would like to order a set if possible. I'm going to be running a 136 inch 2.52" pitch track from an older gsx. I'm thinking that with the smaller sprocket it all should fit unless there's something that I'm missing. So far I've reinforced the tunnel, made some new running boards and am waiting on a redone seat. So if anyone knows how to get ahold of b550 it would be greatly appreciated. Don't worry, I'll post some pictures when it's all done.



#2 treeboy

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Posted 28 September 2020 - 10:26 AM

First of all join the Ski Doo Tundra Owners page on Facebook, there is a lot of info on there about that.
The moderator there has done this and knows what you need.
Also there is a guy on that page that is making the drivers that you need, or you can buy some 2.52 Yamaha drivers and press them on, the shaft size is a wee bit smaller on the Yamaha ones to the tundra shaft but guys have done it.
I’ll be doing pretty much the same thing to mine but with a 141” or 144” under it.

#3 chainsawguy

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Posted 01 October 2020 - 05:48 AM

How many teeth does the yamaha sprocket have? And if so, will there be clearance for the inch and a quarter lug? I'm assuming like a bravo sprocket?



#4 treeboy

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Posted 01 October 2020 - 08:47 AM

Think they are 7 tooth drivers, my buddy pretty much stuffed in a 2” track in with little trimming.

#5 chainsawguy

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Posted 01 October 2020 - 06:34 PM

No kidding, so yeah, just bought some yamaha drivers from a scrapyard, gonna put it all back together, see how it fits. When your buddy changed tracks, did he stick with the original tundra skid



#6 treeboy

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Posted 01 October 2020 - 08:35 PM

He ditched that heavy stock skid and went with a m 1000 skid he had. The stock skid and track are stupid heavy on these old tundras.

#7 Fightinghamster

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Posted 10 October 2020 - 06:42 AM

What Yamaha drivers do you use ?

#8 b550

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Posted 17 October 2020 - 09:37 PM

For tundra 1985 to 2005

The 5-tooth anti-ratchet sprocket with 2.52 '' pitch (half internal teeth, half external tooth) for 2.52 pitch 136 '' - 144 '' - 151 '' -159 '' track !!! with all windows open) (profile height 1.6 '' and less)
The anti-ratchet sprocket 5 teeth with pitch of 2.86 '' (half internal teeth, half external tooth) for track 2.86 137 '' - 146 '' - 154 '') with all windows open) (profile height 1.3 ' ' and less)
Not mass produced, done one by one.

Now: MXZ 500SS 2011 153'', Tundra R 2002, Freestyle 300f 2007, Renegage 800R 2009 (with wheel)

Before: , Elan 1986, Formula500 1997, MXZ500 1998, MXZ600 1999, FormulaZ600 2000, Summit600 144"x2"2001, MXZ500F 2001, TundraR 2000, Skandic440 2002, MXZ500LC 2003, MXZ550Frev 2005, Freestyle Park 550 2007, Elan 250ss 1973, MXZ 500ss 2009.





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