1977 c20
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1977 C20 Heavy duty with 11.15 drums?
Hey guys, I have a 1977 c20 sierra with a 10.5” 14. Bolt FF differential. I want to replace the master cylinder but I need to know if the drums are 11.15 or 13”. I want to avoid removing the drums to measure internally. From everything I read, they should be a 13” drum ( especially being that...- klunker797
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- 1977 c20
- Replies: 14
- Forum: Suspension, Steering & Brakes
