I got a Rhinoliner kit, did my new front winch bumper and also grill/factory steps. Loved how easy it was and how well it turned out. But that was only phase I.

Phase II is the rear bumper/tire carrier and tailgate. But while I am at it I want to hit Phase III which is the front/rear quarter panels/fenders/door jams. Just not sure if it is necessary/advised to remove the fenders before spraying. Obviously I want to save the effort. I know that pulling the fenders would be ideal. Not lazy, just crunched for time with work and want to see if anyone has done this.

 

If you're speaking of the plastic fender flares then yes, you'll want to remove them to complete the liner. They've get a curve on them that would not cover well if you try to spray them on the vehicle.