STRANGE axel twisted?

40 spline would give you piece of mind but come on 40 spline is way overkill.

If you step up to a 35 spline Dana then you are good to go. I have been told that mid to high 10's is the limit for the 8 3/4. I was going to run mid 10's so I made the call and stepped up to a Dana,anyway pick up that Dana and piece it together

I know alot of chevy guys running mid 10's on 30 spline GN rearends. That just goes to show you that Mopars but out WAY more torq than Chevy/Ford. I guess 11 sec is the limit for the stock 30 spline axles.