Idler Arm For 1969 Dodge Dart GTS 440 M-Code

Jim Lusk said
It's just the pitman, but I have no information on what is different. Every big block conversion that we've done used the small block pitman.

Yes, if the pitman and idler are both those regular small block and /6 numbers there should not be and centerlink alignment issue

Has this car been recently restored. Was it running and driving fine before the resto?

many M-code cars have had a VERY rough life as race cars. Something steering wise may have been moved by previous owner/racer.

moving the centerlink up and down is a way to change the bump steer to keep the wheels straight when the front end lift way up during a drag launch.