Ya I don't know about the Ranchargers. Have had a gazillion trunks and no Ranchargers.
You can use the larger booster with the BB. At lease I did.

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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
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970-261-7039
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