Help with rear axle code

[m22muncie]

True enough, I am pretty sure this is an unmolested truck though, as far as the rear axle. I plan to pull the cover soon and change gear oil but I have a lot to get done before I get around to it. I really would like to find a ratio code chart.

[Livrat]

Yes that site is dead, I now have an interchange manual that lists the codes, post up your axle code and I can tell you what it originally was