2.86 pitch track drivers

[j.e.1975]

I'd like to stretch my 04 viper to a 129. I have a good 129 2.86 pitch track but can't seem to find and OE style drivers. Anyone have any suggestions.
Thanks

 

[A couple of bucks]

https://shop.avid-products.com/esho...uotampquotpitchforSkiDootracksamphexshaft.htm
Is yours an 1 & 1/8 or 1/16th hex shaft? I can't remember.
Is the donor track a full clip?

 

[j.e.1975]

I have to measure the shaft, the new track is fully clipped.

 

[s10mike]

Pretty sure 2001 and up all have 1 1/8'' shafts