On 6/8/2013 9:07 PM, PrecisionmachinisT wrote:
Brakes not bear any vehicle weight; that is what axle bearings are for.

Brake wear is due solely to torque, which is going to identical on all four
wheels until one of them locks up.

Ah, but ... the amount of torque that brakes can apply is proportional
to the weight on the wheel. Lightly loaded wheels will lock up before
heavily loaded ones, with the same torque. So, lightly loaded wheels
(the back ones) are torqued less than the front - it's proportional braking.

Bob