I know I am not supposed to be running a Ford rear under my D50 but that is what is under it. I broke a axle the last time I was at the track and I need to figure out what spline to go with. I was running after market 28 spline. I need to upgrade, what spline count would you run 30,31,33 or 35. I only have about a month to get back track ready.

1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...