The 9" housing goes out for narrowing tomorrow, so now I'm getting serious about the ladder bar setup. First, who makes ladder bars ? I won't be using any more SoCal Speed parts, and have checked out P&J and Speedway bars. Anyone else make long bars (48")? Second, some bars have front bushings while other have either threaded DOM tube or bungs for heim joints or 4 bar style thread in bushings. This will be on a driver, so reliability is the major concern. Advantages and disadvantages of each?