I know both my Dusters do not have none of the options of A/C, power steering, power brakes, nor do I carry a spare or jack. Both small blocks/904's and one is about 3200 and one 3160 without me and a 1/4 tank of gas. The 3160 car has a 7.25 rear end. The 3200 car has 8.75 rear end but has had some of the weight behind the bumpers cut out. Both do have the fold down back seat which add a little. Weighed on a digital scale.