Go slow enough and in a low gear down the hills so you don't have to use the brakes at all.

Drive it like it has none, and if you do need them chances are they will still work, assuming they do before you leave. Then when you get home upgrade to the spring brake cans.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-