a deflection compensation system for automobile drivetrain components is provided , wherein a shaft is able to continue in driving relationship to another shaft or coupler in driven relationship when their respective axes of rotation are misaligned . at least one of the shaft and the coupler is preferably supported independently of the other and provided with crown involute splines , whereby one of the shaft and coupler when out of relative alignment , continues to drive the other without the necessity of adding additional moving parts to the drivetrain component .