Beautiful truck Roadrunner.
As far as getting under the rear half, if it were my truck, the decision to or not to would hinge on the condition of the deck boards. If they are rotted and you want to replace them, then the best method would be to unbolt the bed and remove as a unit, thus exposing the entire rear suspension, then follow Tom's advice.
Steve
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
