850 XP rad plugging with mud

Hey just wondering if anyone has found anything that worked to keep the rad from plugging up with mud so bad I have cleaned my rad until it’s spotless and then go out and me and my buddy both have 2014 850s and they are fine in the bush running the mud holes but as soon as you get on a stretch more then about 5 min they both overheat I know the xp’s rear slanted rad makes it prone to this and my friend is doing a rad relocate but I need my front rack so that’s not a option love the bike but really sucks when every other machine is going through the same holes and not ha I g a problem has anyone found anything to help with this thanks