All the books show the same insulators for SB and BB. I have the correct BB 4wd brackets and they only go on the back side of the ears.
72-4 4wd and 72-80 2wd use the straight brackets. 75-78 4wd use the offset brackets shown. All SB use the straight brackets but SB brackets won't bolt up to a BB.

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72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
motormangj@gmail.com