Strength of stock Nodular 3rd member and 31 spline axles

[80superbu]

So as I'm looking around for a new 3rd member I found a setup in a stock nodular housing. What kind of HP will these support?

Also my current setup is a 31 spline axle. Thoughts on what HP these are good to?

 

[LS6 Tommy]

My 9" hjas 31 spline Superior axles & a stock carrier. The guys that built it (Drivetrain Direct) rate it at as being good up to 600 Hp...

Tommy