I'm replacing my door vehicle certification decal (blue vin decal)on my 72SS HT 402 4sp. According to the assembly manual, I need gross vehicle weight and gross axle weight front & rear. Also build month/year and VIN. Where do I find the GVWR and GAWRs for my vehicle? My owners manual lists these only for El Camino. Anybody got a picture or know the weight values?