Don't want to sound stupid but I did a search that found me no clear answer! What makes up a luxury decor package on a 74 grabber?
LDO stands for Luxury Decor Option. This included such things as, chromed grill, bumper guards, that thick side molding, Painted hub caps, vinyl roof, bucket seats, more sound proofing, plastic wood trim, thicker carpet, lighting package, and alot of other useless crap to make it feel like a mini Lincoln.
Mavaholic is correct, mine has all that + a leather wraped steering wheel, reclining buckets and a lighted glove box.