I don’t know about the F250-f350 rear bars but the F150 and Bronco bars are all the same from 1980-1996. All that changed were the mounting brackets for the 9” and 8.8 rear diffs.
If you guys know the similarities of the diffs used in the F250-F350 trucks then that should basically tell you if the bars were interchangeable.
1994 F150 4x2 Flareside. 5.0 w/MAF, 4R70W, stock.
1984 F150 4X2 Flareside. Mild 302 w/ 5spd. Sold.
1980 F150 4X4 Flareside. 300i6 w/ 5spd. Sold in 2021.
1980 F100 4X2 Flareside. 351w/2bbl w/NP435. Sold in 1995