[slickrock]

Originally Posted by MoCoNative

From driving a stock 73 and a 60 series, I would say get one the same size as a 60. They are about an inch smaller than a 40. A 60 series wheel will go right on your 73, I have tried it for the hell of it.

I say this, as there are times, even in my stock 60, that the powersteering is still stiff, and you need the leverage of the wheel to turn it. However, the wheel is noticably smaller than my 40, despite only being an inch or so smaller.

so you think closer to 15"