Which brake cable?

[One1]

1982 CJ7 AMC 258 i6 / 4.2l T-5

My issue is basically I don’t know which size brakes i have. I’m looking at these two cables. Mainly, the end of these cables look very similar and the length is correct on both.

 

[RiverandSand]

If your 82 is stock it will have the AMC20 rear with 10" drums. The first pic will fit. It's easy to check just measure the drum diameter.