is this a ram 9 1/4 or dana 60?

I used to beat on one in a 84 short box with 39.5" Super Swampers on it..........4.56 gears, limited slip. Never had an issue with them. Have had 4 other 1/2 dodge trucks with them and never had an issue with them either. Just watch that limited slip on black ice - it's not a lot of fune!!!!