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If it is indeed a worn pad you need to find out why it wore out so quick.
On an older model it would be a brake line swollen shut that won't allow the
brake to release so it is like driving with your foot on the brake all the time.
It could also be a stuck piston in your caliper, which can possibly be massaged
back into smooth operation with sufficient patience.
While it is excellent practice to replace the rotor, it is not absolutely
necessary, especially on a rear rotor. And by the way since your rear brakes
only provide about 20% of your braking, losing one only reduces your braking
effectiveness by about 10%. I suspect that you still have all the brakes you
need. But you DO need to do something about that metal-to-metal contact, NOW,
and if you can change a tire, you can change a brake pad. I have a grooved
rotor on the rear of my 164 (casualty of a swollen brake line) that I have
been driving on for about 15 years. Brakes work fine once the pads conform
to the grooves. Mutual effect also smooths the rotor.
One way to check to see if your hose is swollen shut is to open the bleeder
on the offending caliper. If it drips or drools brake fluid, your hose is
open.
--
George Downs Bartlesville, Heart of the USA!
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