I'm not certain of this but the part may look something like this , ( found this on ebay but not for my year truck https://www.flickr.com/photos/dennryan/42892591375/in/dateposted/ i have the old one soaking in pb blaster , the star adjuster is broke off of one, dont know how i could on it to turn it out, maybe weld a nut on it then turn.
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Last edited by dennryan; 08/02/2018 4:00 AM. Reason: add