Worked on the rear passenger disc brake on the T/A yesterday. For several months now, I've noticed a worsening rattling/clunking noise from that specific area while cruising at low speeds under throttle as well as during braking. Checked the caliper and noticed both the inboard and outboard pads had a lot of radial side to side movement, which was the source of the sound. Also checked the driver rear side and both pads in that caliper are secured snugly like they should be.
Installed new pads, including cinching the ears on the outboard pad to keep it tightly secured, as indicated in the service manual. The inboard pad had the round anti-rattle spring clip that slips around the piston already, but a quick adjustment of the e-brake mechanism helped tighten it up. I use my e-brake every time I park the car since it's a 4-speed, so the adjustment on it was already pretty good and was was well-adjusted to the old pads with more wear, since I did have to compress the piston a bit to put in the new pads. Both new pads are solidly secured in the caliper now and the rattling/clunking sound is gone.
Candid photo a friend took while I was working on it. And yes, I love my vintage style overalls lol
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1979 Trans Am W72 400/4-Speed WS6 - Starlight Black Hardtop
Last edited by nUcLeArEnVoY; 04-20-2025 at 06:23 PM.
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