Seems like every time I go out and ride (in mud and water) I drain my rear diff and it looks like a grey pasty sludge. No noticeable signs of cracking in the diff and no known holes in my vent tube. Figured it could be the axle seals but both are dry. Somewhere water is getting in but not leaking out.
Anyone have any ideas?
2016 Sportsman 1000 HL
Anyone have any ideas?
2016 Sportsman 1000 HL


