All Mopar 8 3/4 axles use the same spline, 30. I used a stock set of axles with a 30 spline spool in my stocker for several years, it finally broke the left axle off in the spool Luckily it happened on the burn out so I didn't lose control of the car like might have happened on the launch or down track I have also broke a stock axle that was already twisted in the splines, it broke the convex beveled posi plates in the rear end, which eventually cause me to switch to a Dana 70 rear end in that car Best bet is to save your money and buy the 35 spline axles and spool, don't forget about the need for the a steel cap on the drivers side on most high powered good hooking Mopars also and the back brace, the list goes on Best bet is to save your money and buy a custom made Dana 60 for your car