7 1/4 rear 1973 (lbp)

1973dartswinger said

Edited that thanks for the tip. I would imagine open but I’d be guessing and have to look. I’ll get that info. As far as gearing what would indicate that and where could I find it? Thanks alot appreciate the help

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Should have a tag, but in case it was lost/tossed if the cover was removed, visual inspection or the hold one axle & try to spin the pinion are the only sure ways. Gear ratio is stamped on ring gear, if You're sure it's the original rear, the fender tag codes will call-out the ratio & if it's a SureGrip.