* Cab style: Regular cab, SuperCab
* Box length: Different bed lengths added weight.
* Engine: Different engines had different weights.
* Options: Added features like air conditioning, power steering, etc., all affected the curb weight.
To find the curb weight for a *specific* 1977 Ford F-250 4WD, you'd need to find its original sticker (often found on the door jamb or glove box) or consult a 1977 Ford F-Series brochure or owner's manual specifying those options. Even then, the weight listed might be the *manufacturer's curb weight*, which can vary slightly from the actual curb weight of a specific truck.
