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What is this part on my rear disc?

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Old 09-14-2010, 08:42 PM
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Car: 1990 Iroc
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What is this part on my rear disc?
I have got a set of rear disc calipers off a 97 firebird that I am putting on a 99 rear end. This is kinda hard to explain but, it has a plate 3" round and 1" thick that is mounted behind the ebrake cable arm. It sort of looks to be a shock absorber for the calipers? And do I even need this?
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Old 09-14-2010, 08:50 PM
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Re: What is this part on my rear disc?
Originally Posted by Dustytrix
And do I even need this?
No. the 89-92 PBR's, which are nearly identical to the 93-97 version, aren't so equipped.

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Old 09-16-2010, 08:26 PM
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Re: What is this part on my rear disc?
Thanks again James.
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