Uses 1480 u-joint. End of pinion yoke to u-joint center ("B") is 3-7/8". 2.375” diameter for computer pick up ring. Produced from 7075 aluminum and finished with exclusive MW gold coating process. All machining is done in relationship to the spline pitch diameter to ensure each yoke is symmetrical for balance and smooth operation. Utilizes billet steel cap kit for added strength. - Sold separately. Weight 1.2#