your axle is probly from a blazer and the recommendation to replace the axles is correct but the cars in question are wrong the camero and caprice i still own a caprice is a 4.75x 5lug pattern and ive tried to use the 5x5 rims by mistake on the cars the rima that are 5x5 are froma large buick and from cadillacs from the late 70s to early 80s and there also a c clip axle but i would recommend looking for a drum to drum measure match froma truck or blazer with 5 lug