Dana 70HD offset?

[rockabilly66]

Hi. I have a dana 70HD in my c30 1974. It has 23 spline 2 piece carrier. Stock 3.73 gear. I want to change to a 4.56. What ring and pinion do I need? Is the pinion 5/8 offset the dana 70HD?

thank you

 

[bucket]

4.56 and up used a different carrier. So you would need a "thick" ring gear if running aftermarket gears on your stock carrier.