Spider gear advice

[Reef]

im going to replace the spider gears in my Dana 35 because they are starting to brinnel. Looking on rock auto it looks like there are 2 different sizes available? A 1.560" side gear hub diameter, and one with a 1.625" side gear bore O.D. Im not too sure what their talking about or which one i need or are they both actually the same.

 

[Daryl]

Don’t know the answer to your question, but this is the kit you need.
https://www.summitracing.com/parts/SDH-707321X