[LongBox]

Highly recommend getting a windshield wiper arm removal tool. Under 10 bucks at the local auto parts store, and makes the job real easy. I think mine was made by Lisle, and was a round 7.99.

While you can do quite a bit of cleaning while you are in the cowl area, you cannot really get at all the areas that tend to rust, as there is more sheet metal to remove. Easy to lube the wipers as you planned.