It would be better just to upgrade them. Iam running just 28 spline Mosers and they were fine all last year. Moser said with my rear gear and tranny first gear they would handle my torque. Around 440-450 ft/lbs. When I go the next step(not for awhile) chances are it will be 33s and a spool. But that would be around 1000 rwhp. Depends on your future plans, but it sounds like for now aftermarket 28's are fine. Basicly if you break a axle there is a good chance you will wreck the car, and possibly get hurt. Just a thought!