I've got a 77 Ramcharger with power steering, original box, and a new replacement box. Need to know the input shaft spline count. With the milled flat edge they have i am unsure of the actual spline count.

By my best guess / looking / figuring i think it might have started as 30 splines before the flat edge was milled on .

Is that right, 30 splines ?

Need to get another borgeson universal joint, as the pair i have are both 36 splines to "double D". Which seems correct for the steering column output but not the steering box input. Bought a " 1979 to 1992 dodge truck steering shaft " with both ends universaled instead of the rag joint flange. Unfortunately i bought it about a year ago, and haven't gotten around to working on the system till now.

Thanks !