i sure would like to have one of these braces for my 90 w250 . there is a fair amount of frame flex on these trucks , the frame is only half as big as it should be or compared to a Ford of the same year .
These braces are 2wd pieces, although guys have modified to fit the 4wd W series 1st gens. The 4wd braces is a much smaller mount that spaced the gear box out on frame.