There are a ton of people out there going from 136's to 151 and longer. I would think it would be better to get a used 136 suspension instead of rail extensions, probably cheaper too. With big wheels you will need a big wheel kit that will relocated the axle to account for the larger wheels. I am reusinf my old suspension and track in my son's phazer or I would offer it to you.
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Not sure how the SLP Rail Extensions are, but of the ones I have seen and done, Tracks USA makes the best, they not only bolt on, but the interlock with the rails=Super strong, If the SLP's are like this, than they are a good choise. Good Luck with your project, if you have any questions, don't hesitate to PM me, as I have done about 4 121 to 136 strech jobs all on Doos.
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I had wildchild from snowest make my extension but they look just like slps. Your tunnel extension and rails will be nice, the only reason i didnt go with tracks usa extensions is cause they used hyfax extensions with their rails and thats retarded, seriously. So I had some made up by wildchild, and they interlocked just like the slp's do.
As far as gearing i was talking to a sled mechanic friend about gearing for my sled. 99 mxz 600, and he recommended the same gearing as what you said with the 136 conversion, the nice thing is you dont need a new chain just run the one you have and it will work, unless you got more money then go at it and buy one.
And finally stay away from the big wheel kit. Im putting a 4 wheel kit on, it saves the hyfaxs and allow the track to spin better, even if you run in the powder.
With your low to mid range Id say the gearing set up is a start, you could always drop to a 23 on top later.
Well just my $.02 and well i know all the loyal track usa are ganna have a fit about what I said, but well if you want something made right I've always said trust a canadian
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As far as gearing i was talking to a sled mechanic friend about gearing for my sled. 99 mxz 600, and he recommended the same gearing as what you said with the 136 conversion, the nice thing is you dont need a new chain just run the one you have and it will work, unless you got more money then go at it and buy one.
And finally stay away from the big wheel kit. Im putting a 4 wheel kit on, it saves the hyfaxs and allow the track to spin better, even if you run in the powder.
With your low to mid range Id say the gearing set up is a start, you could always drop to a 23 on top later.
Well just my $.02 and well i know all the loyal track usa are ganna have a fit about what I said, but well if you want something made right I've always said trust a canadian
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