BACKDRAFT SLAVE/MASTER CYLINDER cont.. Still having issues

[Jerry Clayton]

The pilot bearing to input shaft nose is either too tight or the bell housing alignment to crank centerline is off---the syncros stop the trans shaft from spinning for forward gears but reverse doesn't have that---these new modern trans are much freer turning, especially when warm and the trans imput shaft is turning from induced friction from the pilot bearing----the older style bushings didn't do this very often but the new very tight fitting roller bearings do.

[cbreez]

Syncro's don't stop a shaft from spinning, just the opposite. They start the selected gear spinning at a similar speed to make the engagement smooth. Thus the name syncronizer...