suspension bushing for '35 t-plane

tigermoth

i am looking for the right hand threaded bushing for the front of the rear spings on a '35 sedan deluxe. the bushing is 1" O.D. 25/32" I.D. , spring width 1 7/8" so threaded portion of bushing is 1 7/8". i need two. any help would be appreciated. this is the single bushing that fits on the 5/8" O.D. pin riveted to the frame. sincerely, tom