Bob,

Question for you. In general is steel 4 times as strong as aluminum?

So if you replace a steel yoke with and aluminum piece of the exact same size you have just lessened your strength by 75%.

After doing some thinking about this subject, The answer is steel is the better choice. Since everybody has a million dollars to put in a midget, go with Billet steel, since it seems money is no object when putting money in a race car. Machine the billet steel yoke to as small as you want it. The billet will be stronger than billet aluminum and will at least be smaller in diameter for less inertia or energy it takes to turn the yoke, during acceleration. It seems acceleration is what people want, so make a yoke out of billet steel and keep the diameter as small as you can, like the journals on a SBC, Honda crankshaft journals?

Wasn't try to steel this post and thanks for correcting me on the misunderstandings of this post and the "U" joint in a Yoke assembly ? I was trying to learn something at other people expense. Sorry for that!

Yeah, I think an aluminum yoke is way less stronger than any steel piece you can buy.

Sincerely,

Larry Otani and God bless you all!