D150 Manual Gearbox Spline Count

Thanks man! That kinda answers my question. The only problem is, I'm going to need either 3 or 4 u-joints in the shaft, plus a support bearing....possibly two. LOL I have to snake around the engine, where the headers exit, go over the frame and control arm, so it's gonna be "involved" to say the least.
With all of those moving parts, expect binding up to be an issue. My buddy has a lowered 1950 Ford PU, and he has been going nuts over his steering shaft issues.