Hi Jon, I have a picture of a rear end on my profile,that's the only place I know how to upload a picture. Anyway, can you tell me what you think it is? It came in a 1962 chevy stepside I bought but I looked to LMC magazine [ differential discription ] but it dosn't look like one of the origanals,I hope im wrong. The truck came with a camaro 305 two barrel carb and 350 transmission. I want to get the best gas mileage , but still sound and look good. I have time to pick what would be best, because I am going to do a frame off restore.Thanks for any help.