Rear Drum Squeal
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Supreme Member
Joined: Aug 2004
Posts: 4,168
Likes: 3
From: Marietta, GA
Car: '91 Firebird Convertible
Engine: 305 TBI (LO3)
Transmission: 700r4, Vette Servo
Axle/Gears: 3.27 9 Bolt, PBR disks
Rear Drum Squeal
I'm considering the new rear with a posi and disks but in the meantime the car has recently started to give me a wicked squeal out of the driver's side rear wheel well. This only happens for the first couple minutes of use and then goes away.
Is this normal or an indication of abnormal wear on the drums or some other problem?
Thanks gents,
Is this normal or an indication of abnormal wear on the drums or some other problem?
Thanks gents,
Senior Member
Joined: Sep 2005
Posts: 615
Likes: 0
From: Philly, PA
Car: 91 RS, 95 Z28
Engine: 305 tbi, 350 lt1
Transmission: 4l60, 4l60e
Axle/Gears: monsterous 2.73s in both
I had something like that with my 91rs. When first started, and I backed up and then applied the brakes, I heard a horrible screaching grinding sort of sound. I took it to a brake place and he suggested that the rusty drums have something to do with it. He said it was not worn pads beause I had a lot of meat left on them.
Senior Member
Joined: Sep 2004
Posts: 830
Likes: 0
From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
ya my car does the same from all the mechanics i have talked to it is common for the drum brake shoes to swell with moisture and cause them to grind until they heat up.
Senior Member
Joined: Sep 2005
Posts: 615
Likes: 0
From: Philly, PA
Car: 91 RS, 95 Z28
Engine: 305 tbi, 350 lt1
Transmission: 4l60, 4l60e
Axle/Gears: monsterous 2.73s in both
That makes a lotta of sense, cus its worse on rainy days, and it happened almost every morning wen i was living at the shore (east coast).
Senior Member
Joined: Sep 2004
Posts: 830
Likes: 0
From: Kansas
Car: 85 camaro sport coupe
Engine: 2.8 MFI
Transmission: v6 700R4 wish it was a 5spd Stick
Axle/Gears: Stock non posi 3.42s
ya i forgot to say that mine only does it if there has been enough rain to make the road damp.
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