All current Moser 12-bolts now come with custom rear housing ends that use the larger Ford axle bearing and four-bolt retention flanges that retain the stock GM bolt pattern, so you can use the ...

The axles have pressed-on bearings and retainer plates that bolt to the housing flanges. There are no C-clips inside the rearend holding them in place like on a 12-bolt. The plus here for the 9 ...

so itwasn't a big surprise when an axle broke right at the flange. We'vesubjected our Chevelle to much more than just high torque andsticky-tire drag launches; we've also abused the stock 12-bolt ...

Which rearend is better? GM’s time-proven 12-bolt or Ford’s popular 9-inch. Each has its advantages and disadvantages. The Ford 9-inch is heavier and eats up more power due to a disadvantage ...

In other words, you can mate a two-bolt or a three-bolt or a four-bolt flange to another two-bolt/three-bolt/four-bolt flange if they have the same size. Another advantage of these flanges is that ...