Which bumper are you asking about? I believe the black one would just because of its straight across design. The chrome one may not because of how it is more form fitted to wrapping around the lower area under the taillights.
The rear bumper brackets bolt to each frame rail with two bolts, and dont really think changes the location of the holes from 1972 through 1993.
The front bumper brackets bolt with three bolts to each frame rail. The 1988 front bumper bracket was much more supportive than the 83 brackets but all the holes still lined right up.
Hope this helps.
