Another newbie question. I was going through some pictures Pete Morgan took when checking out a car for me before I purchased it. First, the car has had a lot of work done to it, so I am still trying to figure out what is right and what is not. I came across this picture and believe I understand the tag info. I did see an earlier thread about the tag date (Dec 66) being so close to the cars build date (Jan 67)...this is close too. [My intake is 6M1 - is this reasonable for my build date?] My question is regarding the numbers that are cast into the axle housing. I have not been able to determine what these mean. Also wondering if this could be the original...any input is welcomed.