Quote: No mention here of any types of 8.75 cases, such as the 489 case. Is it really stronger? Are some of the more extreme horsepower setups allowing the rearend to hold up because of a stronger 8.75 case?
It's not the case that is stronger, it's the style of pinion gear that's used in the various cases. 489 strongest, 742 next best and 741 is pretty much passenger car only.
