12 bolt.

[skykrawler]

Is a 12 bolt rear end strong?

 

[rosedude]

depends on what is on the outside of it tire wise and how much power is spinning it. what do you have? Drivetrain, tires, rig?

 

[skykrawler]

74 k5, I am looking to just run 35's it has a 350 in it. I think I might go to 4:10 gears

 

[ALF]

I'm running 35's on mine with no problems But I'll be going with a 14 bolt eventually