How far can I go with 33 spline Mosers

Starting to solve my traction issues and am looking at my axle limits.
 
Drag car at 3100 pounds, foot braking and going low 9's on motor in the 1/4 mile. This is a narrowed 9" with a Strange spool. Ask if you need more info. If i'm right there at the limit how often should i check the axles?

Strange's website used to have a calculator for sizing axels, I can access the site from here to give you a link, but get on their websie and look around.

Thanks Dave, but i'm not finding it on the website.

last year I twisted a Strange to the limit but the Mosers have not shown any twist while running mid 9's

I know that the 35 s mosers I have will take a lot to make these twist,especially in a 39 inch rear...... 

I ran 33's in a 2800 lb car/transbrake/huge tires that ran 8.7s for years. I broke a lot of things, but never worried about the axles. It's a nice cushion if you just want to move up.

I have 33 spline Moser's and when I ordered mine they said they will handle 1500hp in a 3000lbs. car with no issues.

This is all great information. I will not be as concerned.

Thanks,
Dave