Dana 60 gear carrier question

Dana/Spicer 60 axles were used in EVERYTHING! The HD units, I believe, were 35 spline from Spicer. Fords used these a bit, I think. I've tore apart a lot of Dodge 3/4 and one ton stuff. Always 30 spline.

Very interesting. I have torn a part a lot of Dodge 3/4 ton and one tons also and I have never seen a 30 spline axle in them.