Searched the forum and discussions are typically about the leaf spring shackles. I am talking about the rear cab mounting shackles (item 9.009 Chevy Master Parts Catalog). The shackle assy. has two pins with 7/16-20 threads, 2-7/8" long pressed fit (serrated at head). These pins can be easily tapped out. The bushings are included in any vendors cab mounting kit but I need to replace one of the pins as it is corroded and don't want to buy a complete shackle assembly. Has anyone ever replaced this pin and where can you find them. Last resort, guess a carriage bolt would work?