23 Spline

By it's TrapSpeed, I'm at 400/425hp; Hi-Compression 367 on the street : have run the 2.66, and the 3.09 boxes no problem. Even with 325/50-15 BFG DRs

But I ripped all the teeth off a 23spline input, in an od box , and I wasn't even working it hard.
That's all I got