Steering coupler spline size problem.

[rustytoolss]

My 62 Plymouth had manual steering box. I bought a random Power steering box at swap meet. I just found out that the spline on my coupler on my column is large than the smaller spline on the p/s ps gear box. Can the steering couplers with the smaller spline be swaped out ? and work with my 1962 column ? P/s for those that are going to tell me the manual-P/S columns were different length...my car had the adapter for the length differance, so that should not be an issue.

 

[R/T Boy 67]

The coupler can be swapped.

 

[Kern Dog]

Ha!
I made this mistake years ago. I grabbed a steering column from the shed to use in a car here. I was impressed at how easy the coupler slipped on the power steering shaft. I was underneath the car and pushed a tire to turn it for clearance around the steering linkage and there was a weird growl. I had the column in park with the ignition in LOCK and forgot, yet the tires turned.
I dodged a bullet there. Imagine if I backed out the shop and tried to turn only to have the tires go whatever direction they wanted to go!
Yeah… it must have been an engineering decision to use a bigger shaft on the manual cars since there was no hydraulic assist.

 

[dvw]

Since the adapter is for a PS to manual conversion and you have a PS column. Why isn't the current coupler sized to fit a PS box?
Mopar steering coupler info
Doug

 

[R/T Boy 67]

The original factory made adapters had the big spline on both ends, and a manual coupler was required for the conversion. That is probably what the OP has.