Quote: You would NEVER consider putting a small pinion 8.75 out of an A-body in anything with power, same as you wouldn't put a low line stock 9" in anything with power.
Monte
Have you ever seen one these "small pinion shafts" break? I haven't, lots of ring gear teeth broke though. I chuckle when I read stuff like this. The smallest diameter is the splines and all are the same, 741, 742 or 489. Using the same spline count of course.
Not saying it's a better rear than a 9", it's not. The lack of the extra pinion bearing is the weakness just like any 8 3/4. Not the pinion shaft diameter.
