I have a 98 mxz 670 and gone from a 121 to a 136" track with 1.5" lug , .............what would be my best gearing and clutching for this set up???? what has worked for you??? snow is around the corner and I would like to get my machine all tuned in. Any tips would be great!!!

Would also like to get a freedom axle, from mountain machines. Has any one tried this??? or any other big wheel kit on a 98 670????

cheers,
Jim