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#1
02-16-2012, 12:07 PM
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85 SD frnt Brake Pad back piece- What is it
Okay, I am about to do my first brake job on the 85 3ooSD. I have more brake jobs than I can count but this had me curious. Before I get started I wanted to compare the new pads etc to what is on the car. The inner ( pad has what appears to be a separate thin steel piece that fits between the pad backing and then a lip into the piston cup. It is not on both pads and a new one did not come in with but there is one on each side. The new pads did not include this. What is it anti - squeal, spacer ?
Thanks
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad ) 
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#2
02-16-2012, 03:28 PM
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if this is your first MB brake job, you will need a hacksaw blade, to clean the path in the caliper that the pads ride on. scuff up the sides, down to the steel of the caliper, and apply a VERY THIN amount of caliper grease there.
the shim should be replaced, and i usually glue coat both pads, to eliminate the squeel...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
02-16-2012, 04:54 PM
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VSTech, As always thanks for the help. I have done MB before however none of them had the "shim" so I wanted to be sure.
Thanks again Alan
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92 500E Silver 66k 82 Porsche 911SC 84K 68 Cadillac ( Gone Now ) 03 Suburban Z71 200K 85 300SD 217k From Original Owner ( Dad )
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#4
02-16-2012, 05:49 PM
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The shim is used if there is brake noise, I don't use 'em.
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83 SD 84 CD
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#5
02-16-2012, 06:10 PM
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Quote:
If you're removing the caliper for any reason, a small file is much preferred and will do a much better job than a "hacksaw blade".  You restore the caliper to the polished surface that it had when it was manufactured.
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#6
02-16-2012, 08:37 PM
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Hmmm. Ive never done this on a brake job. So just file down the area around the piston so its nice and smooth? I too am going to do a complete brake job on the SD this weekend. I bought some anti squeal paste but have never used it before. Do I just apply it on the back of the pad where it meets the piston? Thanks
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1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4.9 5speed manual
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