What Gary said, makes good mechanical sense to me. It would also explain Strokerposts symptoms of his rear pinion gear pattern running off the side of the ring gear before breaking some gear teeth. It seems most are breaking the gears and not the caps. This post is important to me because I still run the 8.25 but have a 8.75 489 on standby, next up. mike

Last edited by Sport440; 05/05/04 10:49 PM.
73 Sport 440, 509 cam w/Eddys 3.91 and 28.1"/27.3 tire. Et. 60 ft. 1.435, 1/8th. 6.61 @ 101.80 mph. 1/4. 10.472 / 127.78 mph. 2950# race/with me,and pump gas.