[hypoxia]

FWIW, 1482 has Barksdale 52321 ride height valves.  The difference between different dash numbers, ie 52321-Q136 may be the arm length and shape as well as the bolt positions.  The valve parts are installed using red thread blocker so you have to heat a part before removing it to reposition.  Just enough heat to soften the thread blocker.  As Richard suggested, use the existing valve arm.  Newell valves are proprietary so I cannot purchase that specific part number anywhere else but instead I just get another Barksdale 52321 valve & modify it.