OK just curious, Would a 1975+ B-body 9.25 be bolt in for a 1974 B-body? Iso-mounts included? Sort of a retrofit as it were.
Quote:

The HP and some other big cars were supposed to get the 8-3/4 through the early part of 74. The later part of 74 they dropped the 8-3/4 for the 9-1/4.

The light duty B bodies were supposed to get the 8-1/4.