I have been having ALOT of trouble with the slide in type vent visors they work ok on the back doors (4 door model tracker) but the fronts tend to slip out causing the window not to shut properly........I ended up using a little bit a gorilla glue on the front trim which did the trick but if I were to do it again i would go with the stick ones...if done right they last forever...heck went to the junkyard today and there was a tracker with stick vent visors still attached even after all the abuse its taken.....
I bought the weather guard vent visors...(NFG)