Do a downshift with the transmission control lever at the top of the hill while at low speed, and the engine's higher RPM with your foot off the gas on the way down will give the brakes enough help to keep them cooler.
There was a fatal accident in Port Angeles a few years ago when an RV descending from Hurricane Ridge got its brakes very hot and reached over 60 mph as it came into town. It ran off the road and rolled over in the backyard of a home close to downtown, after running through several stop sign intersections. The driver was killed and his passenger injured, but no other vehicles were involved
