[BogiesAnnex1]

I run ‘em as standard practice on these GM axles they do stiffen up the carrier housing a little and often a little is all you need. I think as much as anything they change the frequency response to fatigue causing vibrations in the carrier more-so than adding some amazing reinforcing strength to the bearing caps. Rather like adding a halo brace to engine main caps it moves the fatigue frequency response away from the shake, rattle and roll that wants to crack the major cast structures.

Bogie