Manual Steering with PS Idler Arm? in 1969-70 Technical Forum Posted 17 hours ago · Report reply On my 69 Mach 1 with 351W and C6 automatic, I just replaced the entire front suspension with stock new components and with the Shelby-Arning drop on the upper control arms. I removed the old power steering components and went with manual. With the long tube headers in the way, I unfortunately can’t feasibly remove the original power steering idler arm. Everything seems to match up fine with just a minor modification needed by trimming the bottom of the bushing on the PS idler arm. The steering wheel turns all the way left and right with no interferences. There is no play in the center link connection to the idler arm. Does anyone know specifically why this may be a problem?