[eschaider]

I was thinking something very similar, Anthony. I am not sure of the exact mechanics of the failure but if it occurs because of force applied to the shaft by the pin then reducing hole diameter for a stronger shaft would sound like a good compromise. Somewhere (I don't know where) the reduced pin diameter might begin to produce pin failures where the head of the pin is being sheard off.

Bottom line, I think the 5th gear overdrive design was never intended for use in a power-shifted environment. Just not power-shifting into 5th overdrive might be the easiest and most straight forward fix for the problem. Moreover, if you haven't won the contest before 5th gear overdrive, I am not persuaded that 5th gear will make a difference in the outcome anyhow.


Ed