Extending 137 to 146 with studs

PAvector

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Snowmobile
2014 Yamaha SR Viper
Can someone confirm that a 137 LTX can be stretched to 146 with just rail extensions without tunnel extension. Planing on running a 1 1/4” lug with studs in the center no more than 1/8” penetration above the lugs. If it’s a go, is any suspension changes needed.
 
Well, when you compare the micofiche for this tunnel extension between the LTX and XTX Viper models, they both use the same part so I would concur with @MrSled

ViperTunnelExt.jpg
 


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