[PGSigns]

When you flip it front to back you may not be able to get the same rack position due to the design of the lower control arms. They may force the rack back some as many have the ball joint biased to the front. This will affect both bump steer and ackerman. Then then is the issue of mounting the rack as some are set up with a mount pad on the back side to go to the cross member that will now be on the wrong side. Lots of things to consider in the design. There are rear steer crossmembers out there for hodrods like the one from Walton Fabrication or Jim Myer racing that could be adapted to your 54.
Jimmy
Jimmy