Just because you don't think it will be used hard is not an excuse to leave a weak link in the design of the brake system.
The only weak links in a good brake system are the tires on the road.

On a vehicles brake system you must not compromise on qulity, durability, or safety.

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-