Ice Cobra 1.6 on 2014 XTX

[NorthernEdge]

I had a 1.6 Ice cobra track (no studs) put on my 2014 XTX this summer. At 15-20 MPH I'm hearing a slapping noise coming from the drive shaft. Goes away when i go over 20MPH. I'm going to get a better look at it this morning but I was hoping for some insight.
My fear is I didn't do enough homework and the lug is too big.

 

[maim]

if you do not see contact with the front cooler, i would call it good. i put a 1.5 composit on my 11 xtx and run it loose with no signs of contact on the coolers. mine does make a chukking nose at slow speeds with no snow.

did you put new slides in at the same time? you might be feeling them wearing in.