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1988 Mercedes 500 sec
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Discussion Starter #1
Rebuilding my rear ate 38mm brake calipers
When I ordered the rear rebuild kits they both hard same part numbers but different dust seals
Why are they different and which is better or the correct one
Pic 1 is a seal with a solid outer frame that clips onto caliper
2nd pic the seals are flimsy and soft and metal rings to keep them in place
 

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Outstanding Contributor
350SDL, '17 GLS450, "Grandpa's Roadster" Project Car
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The seal in pic 1 looks like a shaft seal. Dust seals usually have enough elasticity and "bellows" effect to accomodate piston movement. Can the one in pic 1 do that, or will the piston be exposed as the pad wears? I can't imagine that is right.
 

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1988 Mercedes 500 sec
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410 Posts
Discussion Starter #3
pic 1 is the seal that origionally came off the caliper its is pushed on with a tight fit and the centre does have movement ie folded rubber so piston can move in and out its outer section can best be described like that of a camshaft seal
 
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